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

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 Killers

S6, EP10 "Genene Jones"

A serial killer works as a nurse in Texas, where she kills many children and infants by injecting them with drugs.

World's Most Evil Killers

S8, EP18 "Charlotte and Linda Mulhall"

In March 2005, the gardaí recover human body parts from the Royal Canal in Dublin.

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.

Britain's Most Evil Killers

S5, EP3 "Kenneth Regan & William Horncy"

The shocking story of the two men who murder a millionaire and three generations of his family in a vicious, greed-fueled attack.

World's Most Evil Prisoners

S1, EP2 "O'Rourke"

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

World's Most Evil Prisoners

S1, EP3 "Dennehy"

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

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 Killers

S8, EP6 "Richard Kuklinski"

Richard Kuklinski claims to have murdered over 100 people for New York and New Jersey's crime families.

World's Most Evil Killers

S6, EP8 "Velma Barfield"

The first woman executed by lethal injection after taking six lives.

World's Most Evil Killers

S7, EP3 "Lewis Daynes"

Exploring a case highlighting the many dangers of online grooming; on 17 February 2014, fourteen-year-old Breck Bednar was lured to a London flat before being killed by a fellow teenager.

World's Most Evil Killers

S8, EP7 "Richard Biegenwald"

Over a 25-year career of murder, Richard Biegenwald kills at least six people.

Britain's Most Evil Killers

S6, EP3 "Jamie Reynolds"

A 23-year-old killer murders 17-year-old former head girl Georgia Williams in 2013.

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

"Jerry Brudos"

An in-depth look at some of the world's most dangerous murderers.

World's Most Evil Killers

S6, EP9 "Chester Turner"

A cold-blooded serial killer takes the lives of eleven people during a terrifying decade-long murder campaign.

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