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.

Britain's Most Evil Killers

S6, EP4 "Sarah Williams & Katrina Walsh"

Sarah Williams and Katrina Walsh, the two friends carry out the jealousy-fuelled murder of Sadie Hartley.

World's Most Evil Killers

S7, EP14 "Paul Michael Stephani"

The story of a killer who was infamous for his whimpering confessions over the phone after each of his murders.

World's Most Evil Killers

S5, EP9 "Richard Roszowski"

A profile of Richard Roszkowski, the Connecticut triple-murderer who killed his ex-girlfriend, her nine-year-old daughter and another man in a brutal attack in 2006.

World's Most Evil Killers

S7, EP5 "Joshua Wade"

Responsible for five murders, Joshua Wade avoided justice for years and later confessed to killings that started from when he was just 14.

World's Most Evil Prisoners

S2, EP9 "Pigge"

Remorseless murderer Casey Pigge's main ambition is to be the ultimate serial killer.

World's Most Evil Prisoners

S2, EP10 "Williams"

Feared Aryan Warriors gang leader 'Mugsy' Williams was a one-man crimewave - even behind bars.

World's Most Evil Prisoners

S2, EP1 "Bjork"

Craig Bjork, who killed two women and both of his children, remains a dangerous threat -even behind bars.

World's Most Evil Prisoners

S3, EP1 "Brady"

Mikel Brady leads a violent prison escape attempt, killing four staff members before being recaptured.

World's Most Evil Killers

S8, EP7 "Richard Biegenwald"

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

World's Most Evil Killers

S8, EP3 "Steven Dean Gordon"

Steven Dean Gordon and Frank Cano murder at least four sex workers in California between 2012 and 2013.

Britain's Most Evil Killers

S6, EP4 "Sarah Williams & Katrina Walsh"

Sarah Williams and Katrina Walsh, the two friends carry out the jealousy-fuelled murder of Sadie Hartley.

World's Most Evil Killers

S7, EP16 "Heriberto Seda"

A killer who goaded police and media during his spree, Heriberto Seda claimed to kill based on his victims' star signs.

World's Most Evil Killers

S6, EP5 "Don Miller"

A terrifying killer snatches away the lives of four victims before being caught while trying to claim his fifth.

World's Most Evil Killers

S6, EP7 "Derrick Todd Lee"

The Baton Rouge Serial Killer, known for murdering seven women is sentenced to death for his chilling crimes.

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

S8, EP3 "John Eric Armstrong"

In 1999 and 2000, John Eric Armstrong cruised the streets of Detroit, Mich., looking for sex workers; seen as an ordinary husband, father and co-worker, no one in Armstrong's life suspected that he was a serial killer.

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