Dateline Episode Rating Graph

A Connecticut mother speaks out about her fight to keep her assailant from walking free.

When a woman is murdered, a web of sex and lies is uncovered, revealing a prominent family’s dark secrets. Detectives and an FBI informant tell Dennis Murphy about the case for the first time. Update of Secrets in the Suburbs (S20E45).

After a nursing student vanishes from the hospital parking lot in the middle of her shift, investigators track security footage and her cell phone to get to the truth. Keith Morrison reports.

Lori Vallow’s former best friend speaks to Keith Morrison following the discovery of the remains of Vallow’s children JJ and Tylee on husband Chad Daybell’s property.

Two Tulsa, Oklahoma brothers fight for more than 20 years to prove their innocence after they were each wrongfully convicted for separate murders. Craig Melvin reports.

Lester Holt investigates the government’s response to the coronavirus pandemic and asks if better preparation could have saved lives.

A Colorado woman vanishes. No crime scene. No evidence. No body. Would a dark secret about her marriage lead to clues that solve the mystery of her disappearance? Dennis Murphy reports.

The story of a successful realtor who was attacked and left for dead while showing a home in what looks like a murder-for-hire, and the authorities are left to question his business partners and family to determine a motive. Josh Mankiewicz reports.

Reports from a desert in New Mexico which has become one of the largest crime scenes in history, where the remains of eleven female bodies were found buried.

The murder of a husband exposes the shocking secret life he had with his wife. They were swingers.

A successful young man is shot down in front of his Philadelphia home. A woman finds her way back to her family after being kidnapped 30 years earlier.

Reporter Keith Morrison explores the plight of unwanted children in Moscow, recounting the story of an institutionalized boy whose life took a positive turn after years of rejection.

A divorced mother hires someone to kill her ex-husband. Also, a San Diego mother tries to find the murderer of her daughter and and infant grandson.

When a college student commits suicide, her friends and family question the identity of a person she met in a suicide chat room; a man is accused of murdering a former friend.

Dateline investigates the murder of model and aspiring Playboy Playmate Paula Sladewski who charred body was discovered in a Miami dumpster.

Pro baseball player Alex Rodriguez. An update on conditions at fast-food restaurants.

In May 2017, 22-year-old 8-months-pregnant single mom Akia Egglestion vanishes before her own baby shower and her worried family raises the alarm; Baltimore, MD detectives unravel a chilling mystery.

Two women are murdered in the same Arlington, Texas apartment complex, and police are stumped. Years later, evidence from two subsequent rapes provides a breakthrough. Andrea Canning reports.

A North Dakota college student is found murdered in her off-campus apartment.

After 27-year-old Jonathan Crews dies mysteriously in his Texas apartment, his family takes matters into their own hands in an effort to find answers.

A family is rocked when a fatal accident reveals itself to be something much more disturbing.

When a Texas D.A. and his wife are killed two months after a prosecutor’s murder in the same town, law enforcement fears they may be in the sights of a serial killer. Andrea Canning reports.

The parents of Kristin Smart speak out in their first network exclusive interview since the recent sentencing of their daughter's killer.

The investigation into a deadly home invasion involving business owner Milton Sawyer takes a turn when an unlikely witness on the other side of the country comes forward. Dennis Murphy reports.

Investigators search for answers after a 17-year-old is murdered after a Valentine's Day dance.

Lead detectives in the murder investigation of University of Utah student MacKenzie Lueck speak exclusively to Keith Morrison about the case that made national headlines.

A mother of two who vanishes during a storm turns out to be a victim of something sinister. Dennis Murphy reports.

Chris Hansen visits a shop in New York that sells bath salts, a new designer drug.

When a woman's fifth husband dies in a hospital under suspicious circumstances, an investigation reveals her to be a charismatic charmer with a mysterious past.

Keith Morrison goes to Moscow, Idaho, to report the latest on the murders of four college students in November 2022. Morrison gets exclusive information on the suspected murder weapon, plus details on an incident police believe the alleged killer, Bryan Kohberger, committed before the murders. Also, we learn more about what was going on in the Kohberger family home in the days before his arrest.

Interviews with former journalist Amanda Lindhout and the undercover agent who spearheaded the international manhunt for the individual responsible for her 2008 kidnapping and torture in Somalia.

Sixteen parents fighting to end college hazing at fraternities speak out together for the first time; cases of alleged hazing at various universities.

Former USA Gymnastics national team coordinators Bela and Martha Karolyi talk with Savannah Guthrie about the Olympic sex abuse scandal; Olympic gold medalist McKayla Maroney describes the sexual assault she endured.

A bizarre cyber-revenge case lands a young woman in jail; an unexpected twist reveals the real culprit.

When the body of a 22-year-old college student is found a week after she vanished, theories about her murder run rampant through the Arkansas Ozarks.

When a nurse is gunned down in her home, detectives initially believe they have a clear suspect, but new information leads them down a completely different path. Josh Mankiewicz reports.

A small Texas town is shattered when beloved teacher Manuela Allen vanishes from her home in the middle of the night. When a gruesome discovery is made a short time later at a local lake, investigators are left with more questions than answers.

When a Colorado mother vanishes without a trace, the detective investigating her disappearance discovers a connection to a previous assault; for the first time on television, the survivor of that attack recounts her terrifying ordeal.

Colorado detectives investigate the decades-old disappearance of 12-year-old Jonelle Matthews.

After Ellie Green doesn't hear from her mother for a few days following an argument, she begins to worry. Then she learns her mother is dead. But is that the truth? Keith Morrison reports.

When a woman returns two days after being reported abducted, authorities believe it's a hoax until a similar crime forces them to take another look; twenty-seven women who have accused Bill Cosby of assault get together to share their stories.

Lester Holt reports the story of three American women who face the Great Recession and their own worst fears.

The investigation into the deaths of a couple at their Michigan home leads detectives to believe a family member is to blame.

The man at the center of the international manhunt for an American fugitive accused of faking his own death to evade law enforcement agencies speaks out for the first time on network television.

Insiders close to the case of missing Colorado mother Suzanne Morphew speak out for the first time.

A soon-to-be bride is caught in the middle of a twisted murder plot that has detectives questioning if she played a role in it.

New details come to light on the investigation into a notorious Idaho case involving multiple murders.

A Florida father searches for answers after his daughter dies suspiciously in Belgium.

New interviews reveal the latest twists and turns in the case of Pam Hupp, charged in the murder of her close friend Betsy Faria; Betsy's daughter, as well as the prosecutor behind the wrongful conviction of Betsy's husband speak out.

In Marietta, Georgia, a woman's murder shines a light on an unsolved mystery from years earlier. As the connection between the two cases becomes clear, a long-hidden truth surfaces. Could a master manipulator be behind both crimes? Andrea Canning reports.

When deadly gunfire erupts in an Austin, Texas, home in the middle of the night, detectives wonder if the homeowners' jewelry business is a possible motive; an investigation uncovers a suspect that no one saw coming.

New details on the infamous murder of Laci Peterson, including more on the appeal of her convicted killer.

After filming wraps on an indie horror film, the cast and crew learn their killer star isn’t who she says she is. It’s a plot twist that reveals a real-life killer. Keith Morrison reports.

A man calls 911 after his estranged wife is found unconscious in the bathtub. Soon after the mysterious death, loved ones suspect what happened was no accident. Andrea Canning reports.

A successful businesswoman and mother of three is found shot in her office; the investigation into her death leaves a family divided. Keith Morrison reports

A coroner arrives at the scene of a car wreck to find a woman dead. He becomes suspicious when he notices unusual markings on her face. Was her death really an accident? Andrea Canning reports.

Former Vice President Dick Cheney discusses his new memoir with Jamie Gangel; Grammy award winner Miranda Lambert is interviewed by Hoda Kotb; 12-year-old author of "Heaven is For Real" sits down with Hoda Kotb to hear about his trip to heaven.

The impact of the recent tornadoes, severe thunderstorms and flash-flood warnings in the United States; reports from London include behind-the-scenes coverage of the royal wedding.

When Amber Dubois vanished in San Diego County, a search turned up nothing. Then, a year later, Chelsea King disappeared in a neighboring town. Tonight, Keith Morrison reports on the mystery of the missing California teens.

In the season premiere, the disappearance of two California teenage girls is investigated by Keith Morrison.

A man convicted of the 1997 murder of Ricky Cowles Jr. in Lancaster, Calif., reveals new details on the case in an exclusive interview.

A deadly high-speed chase in Montana leads Dateline on a search through 50 years of history to unravel the mystery of how one man turned into a monster and committed one of the state's most notorious crimes.

An investigation into the case of two missing Idaho children making national headlines. The trail leads Keith Morrison to Hawaii in search of their mother and her new husband.

A family’s search for answers in the 2014 disappearance of 28-year-old Fayetteville, North Carolina construction worker James Chambers. Andrea Canning reports.

Exclusive interviews with close family members of Lori Vallow, the Idaho mother charged with deserting her children, Tylee and JJ, who have not been seen since September. Keith Morrison reports.

Rapper Meek Mill interview; exploring controversies surrounding the criminal justice system, including the parole system, wrongful convictions, challenges faced by law enforcement, alleged police abuse and more.

The case against Michael Jackson’s doctor, Conrad Murray, is in the hands of the jury, who will decide whether he played a role in the death of the pop star.

The children of an Oklahoma pastor survive the robbery that took their parents' lives and observe the trials of those accused of committing the crime.

When the body of an Ohio woman is found in a wooded area near her home months after she went missing, investigators must determine if her death was a suicide or homicide.

The latest in the trial of once-prominent South Carolina lawyer Alex Murdaugh includes exclusive interviews with insiders close to the family.

New evidence, exclusive interviews, and an in-depth look at Lori Vallow and Chad Daybell, the Idaho couple charged in the murders of Lori’s children JJ & Tylee. Keith Morrison reports.

A tight-knit Long Island family goes to extraordinary lengths to find their missing sister. Andrea Canning reports.

A look at the future of marijuana in the United States, including state-of-the-art science and interviews with patients, their families, leading scientists, doctors, federal legislators and a former professional football player.

When dozens of homeowners find themselves on a Napa Valley hilltop surrounded by fire, two teams of daring chopper pilots risk their lives in a mission to rescue them.

In Humble, Texas, a frantic 911 caller, 16-year-old Keri Murphy, reports hearing her mother's screams after an intruder entered their home. When first responders arrive, they find Mary Ann Murphy dead after receiving more than 70 stab wounds. What happened on that dark summer night?

An investigation into the death of a world-renowned snake breeder reveals a sinister betrayal.

When the wife of a popular DJ is found murdered, detectives try to unravel what led to her killing.

After the death of 44-year-old mother Stacy Feldman in her Denver home is ruled as “undetermined,” friends and family join forces to piece together what happened. Insiders close to the case speak out about the seven-year battle for justice. Keith Morrison reports.

Amber Heard speaks out in her first interview since the defamation trial brought by Johnny Depp.

Exclusive new interviews and details on the deaths surrounding Chad and Lori Vallow Daybell, a case Keith Morrison has been on since it drew national attention after Lori’s children disappeared.

When Dr. Teresa Sievers is found murdered in her kitchen, detectives struggle to find any leads until an unexpected tip changes everything. Dennis Murphy reports.

When a wife and mother is found dead in a Kentucky warehouse where she worked, detectives soon zero in on one person of interest.

The discovery of a young woman's body in an abandoned building in rural Texas sparks a multi-state investigation lasting nearly two decades.

When 19-year-old Anton Black dies while being taken into police custody, the community seeks justice; a yearlong "Dateline" investigation looks at the officer at the center of the case and missed warning signs.

A 40-year-old Minnesota woman is shot to death in her bed, while her husband and teenage daughter are home, leaving investigators to wonder who would want her dead;

When Ohio resident Pat Sabo is offered $50,000 to kill someone hundreds of miles away, he calls the police to report the incident; acting quickly, investigators set up an elaborate sting operation to bring down those behind the murder-for-hire plot;

A 59-year-old father is found dead in his home, and family members assume it is related to his ongoing health issues. But when the coroner reveals he didn't die of natural causes, police begin an investigation questioning some of his family members.

A Connecticut bank executive is targeted by criminals who force him to rob his own bank. Dennis Murphy reports.

A fugitive steals millions of dollars by conning numerous women and businesses over 25 years. Will law enforcement finally be able to catch him? Andrea Canning reports.

A woman goes missing and investigators uncover her husband's chilling history including dark secrets about another missing wife.

A Michigan community is shocked when a local mother is found stabbed to death. After the case goes cold for more than a decade, a bombshell reignites the investigation. Andrea Canning reports.

Identical twins find their mother's dead body in their home, located in a gated community; detectives uncover a hidden diary and clues buried in the victim's past. Keith Morrison reports.

The investigation into the mysterious disappearance of a Canadian man sparks an international manhunt for an elusive killer with multiple false identities.

When a pediatric dentist is found dead, police uncovers a complex plot and their suspect leads investigators on an international manhunt; the lead detective speaks out for the first time;

A family begins a relentless pursuit of justice after the death of Nevada attorney Susan Winters is ruled a suicide. Susan's parents open up about the seven-year case and their efforts to push back against the criminal justice system. Josh Mankiewicz reports.

New details emerge in an alleged murder-for-hire plot targeting a former NYC cop's husband.

The murder of a young businessman in Old San Juan, Puerto Rico marks the start of a 15-year hunt and an international game of cat and mouse to find the killer. Natalie Morales reports.

A monster storm had rolled into Canton, Massachusetts, and Karen Read's boyfriend, police officer John O'Keefe, was dead, his body discovered in front of another officer's house. Karen was charged with John's death. Was she to blame?

The separate murders of two women in Toronto ignite an investigation that spans four decades, taking detectives from the big city to a remote, northern town.

New details and interviews about the murder of a professional cyclist.

When a young pregnant mother goes missing in Virginia, her family embarks on a frantic search, but the case eventually goes cold; years later, investigators speak with a woman who tells a harrowing story and may hold the key to solving the case.

When high school student Megan Nichols vanishes from her Illinois home, her mother finds a note saying that she ran away; a grisly discovery made three years later changes the course of the investigation.

Updates in the murder case of former NBA star Lorenzen Wright are revealed.

Nearly 40 years after a young wife and mother is found murdered in her upstate New York home, a new team of investigators joins the cold case to uncover the killer. Andrea Canning reports.

Authorities embark on a 13-year investigation after 17-year-old Brittanee Drexel vanishes during spring break in Myrtle Beach, S.C.

Craig Melvin reveals surprising and exclusive new details about the deaths and legal cases surrounding Alex Murdaugh, the South Carolina lawyer accused of killing his wife and son last year.

The disappearance of 19-year-old Alaska Native Sonya Ivanoff sends shockwaves through the small coastal city of Nome, Alaska. Police scramble to find answers until a note is found in a stolen police vehicle telling the cops to back off or else. Josh Mankiewicz reports.

Detectives search for a motive in the fatal stabbing of Oregon mother Annastasia "Annie" Hester.

Investigators uncover a puzzling connection between two women who disappeared two decades apart.

Insiders speak out about the sex trafficking case against fashion mogul Peter Nygard.

A nationwide manhunt is launched after a woman dubbed the “killer grandma” goes on the run through the Gulf Coast. Dennis Murphy reports.

A mother of two goes missing in Monrovia, California. As detectives investigate, the woman's friends and family reveal that she feared she was being stalked. Josh Mankiewicz reports.

A 59-year-old father is found dead in his home, they assume it's related to his ongoing health issues. But then, the coroner reveals he didn’t die of natural causes. Keith Morrison reports.

The story of Rebecca Musser vs. FLDS leader and notorious FBI fugitive Warren Jeffs. Rebecca opens up to Keith Morrison about life in the church and why she decided to leave the denomination.

A college student is found murdered and investigators are left with no answers in sight. As police search for the truth, they are stunned to learn who might be involved. Keith Morrison reports.

Pamela Smart was television's first true crime fascination after her husband was found murdered. Police discovered that Pamela Smart was keeping a big secret. Andrea Canning reports.

A Kentucky man is convicted of murdering his co-worker; the mystery is considered solved until a stunning disclosure, years later, turns the closed case upside down.

When a mother is discovered dead inside her home, it appears to be a suicide. But when investigators start to interview those closest to her, an evil plot emerges. Dennis Murphy reports.

A popular high school student is found murdered in her bed; two students help police solve the case.

Interview with Andrea Constand, the first woman to pursue charges against Bill Cosby, and four other Cosby accusers who testified against him.

Former DEA agent Andrew Hogan details his search for Mexican drug lord Joaquín "El Chapo" Guzmán with never-before-seen videos and photographs.

When a complicated Texas love triangle ends in murder, a pink gun leads to an arrest, until new evidence prompts investigators to rethink the case.

After a mother is murdered in her own bed, the 911 dispatch center fields two calls, one from her son and one from her husband, both of whom claim the other is the killer, telling wildly different stories that the authorities must figure out. Dennis Murphy reports.

While away on business in California, Frank Howard, a high flying accountant from Carrollton, Texas, learns that his wife has been brutally attacked in their home.

Authorities investigate the death of a young mother who was found in her own home by her identical twin daughters, in a presumably safe, gated community, leaving behind clues from her past that point to a potential love triangle. Keith Morrison reports.

Terrorism is suspected when a woman's truck explodes outside of the daycare center where she works.

After young father Matthew Podolak dies from antifreeze poisoning, the manner of his death remains undetermined until his brother embarks on a quest for the truth.

A couple with the perfect marriage until Cristi was found dead in the backyard spa. And, a story-book marriage, NO lust, greed and deceit led to an elaborate murder plot that makes reality TV look like a fairytale.

This report airs Tuesday, Feb. 20 on NBC.

When a soldier, Vannessa, vanishes from Fort Hood, her family do everything they can to bring attention to her disappearance; Secretary of the Army Ryan McCarthy speaks about the investigation and allegations of sexual assault in the military;

Footage and interviews from coverage in the days following Hurricane Katrina; Brian Williams describes the chaos he witnessed while reporting from New Orleans.

The latest in the case of a missing young Oregon woman, whose disappearance led to an intense manhunt, after a suspect embarked on a two-state crime spree;

Prince Charles discusses his role as the Prince of Wales, his relationship with his sons, his media image and his attempts to combat global warming.

A man dies in a shooting incident after tempers flare in a confrontation in Montana's Glacier National Park.

The families of George Floyd, Jacob Blake Jr, and Eric Garner open up together in a raw and emotional conversation about their pain, anger, and frustration over police violence;

We’re on the hunt for a new kind of predator: Wendy, the apparent mastermind of an international identity theft ring. So far, the search had taking us taken us clear across the country and it’s about to take us around the world as we track down the crooks who steal your credit card and banking information to go on shopping sprees with your money.

A teenager and her family stop a string of attacks against women when they stop a killer in his tracks.

A husband is found dead in a stable in what appears to be a horse accident. But when bullet casings and a bloody pipe are found nearby, blame shifts to his wife, whose daughter and son accuse her of plotting the murder and convincing her son to commit the crime.

An Easter Sunday celebration turns tragic when a Nebraska family's parents are murdered. Correspondent Keith Morrison traces the search for justice in the cas

Previously unknown details of the Elizabeth Smart abduction; investigators fear the case of a murdered businessman may go unsolved despite their continued efforts.

Lester Holt takes viewers into Chicago communities, children who grow up quickly and die young.

When a woman goes missing in a small town in rural Michigan, her husband becomes the primary suspect. But eyewitnesses and surveillance cameras support his alibi that he was in Virginia the day she disappeared - more than 700 miles away.

A couple's romantic night at the Hudson Palisades ends in a tragic fall, leaving officials questioning whether or not it was an accident.

Watch amazing animals and the true stories behind some of the most popular videos on the web.

A young Florida mother abducted at gunpoint and taken for ransom. Three failed attempts to drop the ransom put everyone on edge and no one imagined the bizarre way this crime would be solved.

The investigation into the death of a pregnant woman just months after she wed her high school sweetheart reveals secret lives and feuds.

A wife calls 911 to report her husband has been shot on a country road in Texas. Could the dramatic police footage from the scene end up being key in the investigation? Josh Mankiewicz reports.

“Written in Blood" Dennis Murphy reports from Michigan on the murder of two parents and the investigation into their son.

Andrea Canning reports on the dramatic updates in the case of international fugitive Nicholas Rossi—also known as Arthur Knight and Nicholas Alahverdian—who faked his death. Will the man with multiple identities finally face justice?

A man with a troubled past goes through an intense emotional therapy program.

When a young woman's fiance is tragically killed at a bar on Halloween night, the authorities are charged with the difficult task of finding the identity of a killer who has not only disappeared, but was in costume on the night of the incident.

The community of Jonesboro, Arkansas is stunned when a local father and real estate investor is found dead in his own kitchen, leaving the authorities on the case wonder who could have possibly been behind the young man's murder.

When a fire is set to cover a murderer's tracks in Bergen County, N.J., for the third time in a year, authorities suspect a serial killer may be on the loose.

When a creative entrepreneur abruptly leaves his business for an international surfing adventure, his family’s worry turns into suspicion. Keith Morrison reports.

The investigation into a woman's mysterious disappearance from inside her home in Washington, D.C., reveals a connection to the decades-old disappearance of another woman.

The discovery of a teenager's car abandoned on a New Jersey bridge turns into a homicide investigation. Police uncover a plot involving money, close friends and betrayal. Keith Morrison reports.

A husband is shot dead in his own bed; no one else in the house was hurt, including his wife, who was sleeping beside him. Keith Morrison reports.

Lead detectives break their silence on the investigation into once-prominent South Carolina attorney Alex Murdaugh.

When 16-year-old Britney Ujlaky disappears, a small town in Nevada bands together to track down a potential suspect - an unknown cowboy; Soon, their focus turns to someone much closer to Britney.

Investigators track down a suspect in the disappearance of a celebrity dog trainer.

A cryptic 911 call made days before a young Army veteran disappears helps detectives uncover the truth, exposing a twisted story of unrequited love Josh Mankiewicz reports..

A 29-year-old woman goes missing.

An in-depth look at the journalists who exposed the dangers of cult leader Reverend Jim Jones; interviews with witnesses to murders carried out by Jones' followers.

An in-depth look at the history of allegations against singer R. Kelly, including interviews with several women who accuse Kelly of misconduct.

When Susan Woods doesn’t show up for work, she is soon discovered dead in her bathtub. As police search for answers, they find a trail of victims. Natalie Morales reports.

An investigation into the murders of several women found dead along Gilgo Beach in Long Island, N.Y.

When a young Army medic based at Ft. Bragg, N.C., goes missing, police can't solve the case despite having a suspect until an unorthodox private investigator steps in to help.

A California woman eludes police after both of her husbands are found murdered nearly 20 years apart. Until fate catches up with her. Keith Morrison reports.

The disappearance of a young woman from Bend, Ore., leads to an intense manhunt after the suspect embarks on a two state crime spree.

Hiker Meredith Emerson goes missing on Georgia's Blood Mountain on New Year's Day 2008. Could her disappearance be linked to two cases with similar circumstances? Dennis Murphy reports.

When two mothers meet after one of their sons disappears after a college party, their search for answers leads them down an unexpected path.

A successful business woman and mother of three is found shot in her office. Will justice be served? Keith Morrison reports.

The deadly shooting at U.S. District Court Judge Esther Salas’ home that left her husband Mark injured and their son Daniel dead.

When a private investigator and former police officer vanishes, detectives think there may be more to the story when strange text messages start to appear... Keith Morrison reports.

After a mother and son are found dead, it takes nearly a decade to unravel the case. Andrea Canning reports the latest, including how a second investigation led to a new and unexpected arrest.

A man disappears after a duck hunting trip in Florida on his sixth wedding anniversary and is later found to have been murdered.

Author Rachel Jeffs talks about what it was like to grow up as the daughter of the self-proclaimed prophet of the Fundamentalist Church of Jesus Christ of Latter-Day Saints, Warren Jeffs.

An anonymous letter leads authorities investigating the poisoning death of a chiropractor to an unlikely suspect.

An unexpected suspect comes to light as investigators work to solve a string of deadly shootings targeting women in the border city of Laredo, Texas. Josh Mankiewicz reports.

After a 2011 Halloween party at a country club in Dyersburg, TN, Karen Swift, a wife and mother of four, vanishes. Nearly a decade later, a private investigator claims to uncover chilling new clues that turn the town upside down.

Three siblings’ lives change when their father is taken hostage in an orchestrated abduction. For the first time, they open up to Keith Morrison about their ordeal and its stunning conclusion.

A mystery looms over a small New York town when a woman is murdered and a stunning secret is exposed; more than a decade later, new developments lead to an unexpected conclusion.

The first in the series aired in November 2004 as a Dateline NBC segment called Dangerous Web. The operation was set up in a home in Long Island, NY, to which 18 men came over two-and-a-half days after making an appointment for sex with a minor. One of the men in the investigation was a New York City firefighter, who was later fired by the FDNY.

As a murder victim's sisters dedicate themselves to finding the killer, an unexpected source turns the case upside down.

When a model and up-and-coming YouTube celebrity turns up dead, police question her husband in the hope he can shed some light on the situation.

A popular college freshman is gunned down in her car for no apparent reason. Police had no clues: no fingerprints, no information about trouble in Michelle O'Keefe's life. Then an unexpected source comes into the picture.

George Clooney embarks on a fact-finding mission across war-torn Sudan.

Hidden cameras reveal scams including a psychotherapist with a dark secret, fortune tellers and air duct cleaning companies.

“Inconceivable" Meredith Vieira reports on a mother who discovered she was carrying another couple's embryo.“Internal Affairs" Josh Mankiewicz follows a cold case to its conclusion as the Los Angeles Police Department investigates its own officer for a murder.

Chris Hansen files a report on Mexico's drug war. Hansen joins with Mexican federal officers on a secret assignment to capture kingpins and relates the story of a hit man leading a double life. Also: a woman who sacrificed all to battle corruption.

Dennis Murphy delves into how two brothers were killed under odd conditions but at different times and in separate locations. In addition, Keith Morrison details a family hunting trip in Newfoundland that went terribly wrong.

A man who was arrested and tried three times for the death of his wife of four months talks about the case.

Hidden cameras reveal how quickly, honestly and efficiently repairmen do their jobs.

A former homecoming queen comes under suspicion after her husband is found stabbed to death and an affair with the local youth pastor is uncovered.

Tom Brokaw reports the story of three different families throughout the war in Iraq.

An indie film-maker is connected to the case of a missing man, which started as an obsession with "Dexter". Was it a publicity stunt or something far darker?

In October 2009, James Arthur Ray, a renowned self-help author and speaker, held a "Spiritual Warrior" retreat in Sedona, AZ. Three people died during the retreat, and Ray was charged with manslaughter but convicted of a lesser charge.

A man claims his young wife killed herself after she is found dead in her burning home.

Some of the most incredible, death defying escapes to ever be caught on tape; authorities investigate the mysterious death of a young woman, whose body was found on the streets of Miami a mere four days after her wedding. Dennis Murphy reports.

20 years after an attractive young nurse was murdered in her studio apartment, authorities try to piece together what little evidence that remains to solve the cold case, including a necklace that was broken and a strange murder weapon. Keith Morrison reports.

When a well-known woman from a prominent family is found dead in her Aspen, Colo. home, the entire community is left in a state of shock, leaving the authorities wondering who was behind her apparent murder and why they did it. Keith Morrison reports.

When young mother and wife from upstate New York mysteriously vanishes, the authorities on the case find some unexpected secrets that leave them wondering if her disappearance is related to her online life, or something much closer.

When two women from the same church are the victims of violent crimes one year apart, the authorities try to determine if there is a connection, and a photo surfaces that leads them to believe the similarities between the case are not coincidental. Keith Morrison reports.

A well known lawyer from a southern town is found brutally murdered, with his girlfriend bound by duct tape, and as the authorities put together a list of potential leads, the primary suspect has a surprising connection to the victim. Andrea Canning reports.

A newly married couple both manage to recover from the same strange illness, but months later, the wife ends up passing away after showing the same symptoms again, leaving the investigators without answers, until some old recordings surface. Dennis Murphy reports.

A woman seeks the truth when her whirlwind romance turns into a mystery involving government agents.

German foreign exchange student and soccer player Diren Dede's dreams of studying in America came true when he began his junior year at a Montana high school. But when he decides to play a reckless teenage game, the consequences turn deadly. Josh Mankiewicz reports.

An arrest is finally made five years after a mother of four disappeared while she was close to her apartment in Montana.

Authorities take two years and three trials to solve the shooting death of the wife of an FBI agent in the kitchen of her family's Virginia home.

When detectives track down the killer of a Las Vegas cocktail waitress and mother, it becomes clear that the investigation has just begun.

After a sudden marriage creates tension between two families, a murder exposes secrets, lies and a long-buried mystery.

An unexpected revelation may change the fate of the man convicted in the case of a young woman found dead in the Kentucky warehouse where she worked.

Keith Morrison reports on the mind and myth of Charles Manson. The one-hour special features rarely-seen video of Manson and interviews with his former parole officer and a “Manson Family” confidant. Morrison also speaks with key players in the case including: Gregg Jakobson, former music producer; Barbara Hoyt, former Manson family member; Debra Tate, victim Sharon Tate’s sister; Anthony DiMaria, victim Jay Sebring’s nephew; Virginia Graham, key witness for the prosecution; and Manson expert and author Jeff Guinn.

A small-business owner and his bride are murdered shortly after their wedding; police suspect a family feud is the cause.

A look at the case of con man John Meehan, including interviews with his wife and her daughter, his ex-wife, law enforcement officers, and the Los Angeles Times reporter who shined a spotlight on the story.

A couple's anniversary celebration ends in murder during what appears to have been a home invasion, but investigators believe the suspect might be connected to the victim.

When one woman breaks off her relationship with a boyfriend she says abused and stalked her, he moves on to something even worse.

A husband convicted of murdering his wife is granted parole; others fear he may kill again.

Two young women are shot and left for dead on a beach in Texas. After one miraculously survives, she is determined to find out who the attacker is. When a man is eventually convicted, the long road to justice seems to be complete.

Andrea Canning reports on the latest developments in the case of Georgia teacher and former beauty queen Tara Grinstead who vanished nearly 15 years ago.

An Arkansas realtor goes missing after showing a house. When loved ones later receive mysterious text messages from her, they know something isn’t right. Andrea Canning reports.

After Todd Chance is murdered, police follow a trial video evidence as they work to track down the killer;

More than 2 decades since the tragic death of Princess Diana, Dateline reveals new insights into the real story of the very private royal, including a look at Diana's troubled marriage, her turbulent life in the royal family, and the investigation into her death;

A romantic Mediterranean cruise, which was intended to rekindle the love between a woman and her ex-husband, had led to the vanishing of her; the investigation would reveal secret recordings, a surprising star witness, and an undercover hit man;

Popular basketball player Lorenzen Wright is found murdered in 2010. His mother insists she knows who murdered her son and is relentless in her pursuit of justice. Andrea Canning reports.

When film executive Gavin Smith vanishes, Los Angeles detectives search for clues amid reported sightings and suspicious circumstances. The case takes a dramatic turn when Gavin’s wife reveals painful secrets. Keith Morrison reports.

In the early morning dark in San Antonio, Texas, a husband shot his wife, saying he mistook her for an intruder. Was this a terrible accident or a case of deliberate murder? Andrea Canning reports.

The mysterious death of a 23-year-old mother in New Mexico goes unsolved, and her family searches for answers. Keith Morrison reports.

A man convicted of murdering a woman in her upscale Austin, Texas, home tells his story for the first time.

After a 27-year-old woman is found murdered in her Michigan home, investigators quickly identify a person of interest, but years pass without an arrest. Andrea Canning reports.

A young father's murder at work leads investigators to deep secrets about sex, friendship, religion and family.

When 18-year-old Anjelica Hadsell disappears, the investigation uncovers a sinister betrayal.

Andrea Canning reports on a young, beloved woman who is found dead near a soccer field in Indiana. Detectives try to piece together a puzzle that leads them to the most unexpected of suspects.

A father in Hawaii tackles setback after setback in his fight for justice for his murdered daughter.

A former FBI agent is murdered at his house, and as police dig into his past, they begin to think the key to solving the mystery might be quite close to home. Josh Mankiewicz reports.

In Morris, Alabama, faith is a way of life. But when a man is murdered, rumors involving a pastor begin to swirl and the truth ends up turning the community upside down. Andrea Canning reports.

Kathleen Schroll makes a phone call that names her killer right before her death, it leads to the arrest of a father for murder. But two trials and 12 years later, authorities begin to wonder if he was the victim, not the villain.

When 17-year-old Alissa Turney is reported missing in Phoenix, it takes years before detectives treat her case as a homicide; a new investigation unearths dark family secrets.

After trumpet player Scott Sessions fails to show up for a scheduled gig, his family learns his body was abandoned in the remote Colorado Rockies; as the investigation narrows in on two suspects, a second murder catches police by surprise.

Brandy Daniels believed someone was stalking her. Then, the single mother was found slumped over in her car, shot dead. Investigators would spend years navigating the twists and turns searching for her killer.

When a beloved teacher and former beauty queen goes missing in Georgia, it triggers a decade-long investigation that makes national headlines. Andrea Canning reports.

Reckless A teenager is convicted of encouraging her boyfriend to kill himself; exclusive interviews with those on both sides of the case.

After a father goes missing, his body is found in a field several miles away. Investigators start putting the pieces together and uncover multiple suspects – even within his own family. Andrea Canning reports.

Witnesses see a woman handcuffed in a parking lot and taken into an unmarked car by a blond woman. But detectives can't find any record of an arrest. Where could she be? Josh Mankiewicz reports.

A mystery in paradise unfolds when a woman vanishes from a luxury yacht in the U.S. Virgin Islands.

After an Oregon chef is murdered, investigators uncover a potential clue written years earlier.

A hunting safari in Zambia ends in a nightmare when a shot rings out from inside the campground.

When a firefighter is murdered, the investigation unravels a web of secrets, a love triangle and stunning surveillance footage. Dennis Murphy reports.

When a young mother disappears after leaving her infant in the care of her local pastor and his wife, Florida detectives search for her for five years, uncovering a web of secrets and lies.

A daughter's determination to learn more about her mother's mysterious death leads to the reopening of a 30-year-old cold case.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

When shots ring out at a home in Saco, Maine, Rachel Owens is found shot in the head. Police launch a complex investigation that involves three states, all holding pieces to the puzzle. Andrea Canning reports. Dennis Murphy reports.

The remains of 11 female bodies are found in the desert outside of Albuquerque, N.M.

Actor Michael Douglas discusses his battle with cancer; former President George H.W. Bush's foreign policy team; Tucson, Ariz., shooting survivor Suzi Hileman.

An investigation of a woman found murdered in Fort Worth, Texas.

Looking back at O.J. Simpson's infamous Bronco car chase and subsequent standoff with the LAPD SWAT team, 25 years after the murders of Nicole Brown Simpson and Ron Goldman.