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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
S5, EP18 "Arthur Shawcross"Arthur Shawcross, known as the Genesee River Killer, was a serial killer who murdered 11 women.
World's Most Evil Killers
S8, EP16 "Joe O'Reilly"Less than 20 minutes after dropping her children off at school, Rachel O'Reilly is murdered.
World's Most Evil Killers
S7, EP2 "John Cannan"Experts look back on the crimes of John Cannan as he moved in and out of prison.
Britain's Most Evil Killers
S6, EP2 "Trimaan Harry Dhillon"A killer attacks his ex-girlfriend in a jealous frenzy and commits a brutal murder after a campaign of harassment.
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 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
S7, EP18 "Robert Hansen"The Alaska serial killer Robert Hansen who murdered at least seventeen women during a spree that lasted for more than a decade.
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.
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
S3, EP5 "Gardner"Joshua Gardner commits his first murder at 24; even behind bars, he can't contain his rage.
World's Most Evil Prisoners
S3, EP9 "Maugaotega"Miti Maugaotega Jr. receives one of the longest prison sentences in Hawaiʻi history.
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, 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, 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.
World's Most Evil Killers
S6, EP3 "Sean Vincent Gillis"A serial killer brutally snatches away the lives of eight innocent women during a decade-long killing spree in Louisiana.
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.