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.

World's Most Evil Killers

S6, EP2 "Robert Pickton"

One of the most prolific serial killers in Canadian history is dubbed "The Pig Farmer Killer" by the media.

Britain's Most Evil Killers

S5, EP1 "Stephen Farrow"

A profile of the double-murderer who killed a 77-year-old teacher and a 59-year-old reverend.

World's Most Evil Killers

S7, EP10 "Zahid Zaman"

On the surface, Zahid Zaman portrayed himself as a pillar of the community, but the true story of this cult killer was deeply sinister.

World's Most Evil Killers

S8, EP17 "Colin Whelan"

When Mary Gough is found dead in her family home, her husband Colin Whelan appears shocked.

World's Most Evil Killers

S8, EP15 "Nicholas Burton"

In April 1997, 27-year-old Rachel McGrath is stabbed to death by an unknown attacker in a car park.

World's Most Evil Killers

S7, EP8 "Adrian Prout"

A master manipulator is accused of the murder of his wife, and is eventually caught out by a polygraph test - and his own fiancée.

World's Most Evil Prisoners

S1, EP5 "Osuna"

Covered in tattoos, his terrifying appearance makes Jaime Osuna a feared man in the U.S. prison system; awaiting trial, he begins practicing Satanism and attempts to kill a fellow inmate.

World's Most Evil Prisoners

S1, EP8 "Pike"

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

Britain's Most Evil Killers

S5, EP10 "Billy Dunlop"

A profile of the killer who, after killing 22-year-old Julie Hogg, became the first person to be convicted under revised UK double-jeopardy laws.

World's Most Evil Killers

S8, EP19 "Catherine Nevin"

Catherine Nevin reports a break-in and violent attack at her pub, which leaves her husband dead.

World's Most Evil Killers

S6, EP1 "John Allen & Lee Malvo"

The story of the Beltway sniper attacks; John Allen and his teenage accomplice carry out a brutal series of shootings that kill ten people.

World's Most Evil Killers

"Phillip Austin"

A profile of the father who took his two young children for a fish and chip supper after murdering his wife and strangling them when they returned home.

World's Most Evil Killers

S8, EP1 "Lester Jones"

In 2007, single mother of three Paige Birgfeld goes missing.

World's Most Evil Killers

S8, EP9 "Billy Mansfield Jr."

Billy Mansfield Jr. moved between Florida and Michigan, targeting vulnerable women and girls.

Britain's Most Evil Killers

S6, EP8 "Geoffrey Evans & John Shaw"

Geoffrey Evans and his accomplice John Shaw hit headlines in 1976 after the murders of two women in Ireland.

World's Most Evil Killers

S7, EP8 "Paul Runge"

A killer who found some of his victims through ads, the case of Paul Runge become prominent in the debate over the death penalty in Illinois.

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