
A whole channel dedicated to the lives and crimes of some of the World's Most Evil Killers like Jeffrey Dahmer, Richard Ramirez, Dorothea Puente and more.

One of the UK's most infamous serial killers, Joanna Dennehy brutally stabbed three men to death.

His time behind bars only made Italian-American mobster Freddy Geas even more brutal.

James Robertson is one of the most feared men in the US prison system; he murdered his cellmate, attacked a prison employee and doesn't hold back from getting what he wants.

Gary Vinter, in prison for double murder, stabs a fellow inmate in the eye and gives another brain damage.

James "Porky" O'Rourke's addiction to violence means he is one of the most feared men in the UK prison system.

In December 1998, The Railroad Killer, 38-year-old Angel Reséndiz brutally beat Dr. Claudia Benton to death in her own home; he's suspected of murdering at least nine more people; he evades authorities by using a multitude of aliases.

A horrific serial killer, Harold Shipman was a trusted doctor who murdered at least 215 people, but was found guilty of the murder of 15.

Arthur Hutchinson, a violent sexual predator and notorious murderer, breaks into a home and murders three family members.