Nobody is safe around Jaime Osuna. Sent to prison after the torture and murder of a mother of six, he was then put on trial for one of the most gruesome murders to occur in a US prison.

While on trial, 33-year-old goes on a violent rampage inside the courtroom that ultimately leads to three murders and a state-wide manhunt to apprehend him. Once incarcerated, he cultivates a violent reputation within the prison walls.

The story of Tyler Davis Bingham, petty criminal turned leader of the brutal & feared Aryan Brotherhood.

At 18, Christa Pike commits a brutal murder & becomes 1 of the youngest women ever sent to death row.

Edward Johnson is sent to prison for the brutal murder of a female friend, but the violence doesn't end there.

One of the UK's most infamous serial killers, Joanne Dennehy stabbed three men to death over ten days, and attempted. When securely locked behind bars the public are safe.

Mark Hobson is a notorious British spree killer who murdered twin sisters,and an elderly couple in their own home.Behind bars he is no less brutal.

James Robertson is one of the most feared men in the Florida prison system. He murdered his cellmate and attacked a correctional officer to get his wish - to be put on death row.

Gary Vinter is a convicted double murderer. Now behind bars, he is one of the most feared men in the English prison system. He is a thug for hire, who stabbed a fellow inmate.

James O'Rourke grew up in the Glasgow gangs, if there was a violent crime in his hometown, he was probably there. By his early 20s he'd graduated to murder, but his violent nature really blossomed after he was sentences to life in prison.