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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
S9, EP13 "Michael Ross"Michael Bruce Ross, driven by sadistic urges, killed multiple young women in Connecticut.
World's Most Evil Killers
S8, EP7 "Richard Biegenwald"Over a 25-year career of murder, Richard Biegenwald killed at least six people.
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.
Britain's Most Evil Killers
S6, EP9 "Mark Martin: The Sneinton Strangler"The story of Mark Martin, who murdered three homeless women in his quest to become Nottingham's first serial killer.
World's Most Evil Killers
S7, EP1 "Stephen Unwin & William McFall"After striking up a friendship in prison for previous murders, Stephen Unwin and William McFall's release had awful consequences.
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
S9, EP12 "William Devin Howell"Gardener William Howell used his van as a "murder mobile," killing women and dumping bodies.
World's Most Evil Prisoners
S2, EP8 "Simmons"Imprisoned for murdering a woman and her teenaged son, Denver Simmons only caused more violence behind bars.
World's Most Evil Killers
S8, EP18 "Charlotte and Linda Mulhall"In March 2005, the Gardaí recovered human body parts from the Royal Canal in Dublin.
World's Most Evil Killers
S9, EP17 "Emanuel Webb"A decade-old link revealed a serial killer who kept the same M.O. after moving far away.
World's Most Evil Killers
S9, EP8 "Johnny Miller"Charlotte Murray vanished, and the lies from her ex-fiance Johnny Miller led to his conviction.
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
S9, EP10 "Christopher McGowan"Claire Inglis became trapped with violent offender Christopher McGowan, leading to tragedy.
World's Most Evil Killers
S5, EP1 "Lonnie David Franklin"Lonnie David Franklin Jr. is better known by the nickname Grim Sleeper; he lures vulnerable women into his car before murdering and sexually assaulting them for more than two decades.
World's Most Evil Killers
S9, EP16 "David Marmolejo"Gloria Marmolejo's attempt to stop her son's illicit relationship ended in her murder by him.
World's Most Evil Killers
S6, EP6 "Gary Ray Bowles"The I-95 killer, who brutally killed six men in 1994, is executed three years later.