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

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

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

S7, EP7 "David Bieber"

A fugitive from the United States murders one British police officer and tries to kill two more, sparking a nationwide search.

World's Most Evil Killers

S6, EP8 "Velma Barfield"

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

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, EP7 "Robertson"

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.

World's Most Evil Prisoners

S1, EP10 "Geas"

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

World's Most Evil Prisoners

S1, EP1 "Vinter"

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

World's Most Evil Killers

S8, EP14 "Danville Neil"

In 2022, Danville Neil is finally jailed for the brutal 1993 murders of a WWII veteran and his sister.

World's Most Evil Killers

"William Bonin"

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

World's Most Evil Killers

S7, EP7 "Mark Goudeau"

A man who terrorized Phoenix in an extensive year-long crime spree, committing nine murders with no apparent motive.

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

S5, EP7 "Sabah Khan"

A woman murders her sister after developing a deadly obsession with her brother-in-law.

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

S5, EP18 "Arthur Shawcross"

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

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.

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