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World's Most Evil Killers
An in-depth look at some of the world's most dangerous murderers.
World's Most Evil Killers
S7, EP6 "Nathan Matthews"A family's worst nightmare occurs when 16-year-old Becky Watts goes missing, and is found dead days later, murdered by her own stepbrother.
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
S5, EP19 "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, EP2 "John Cannan"Experts looks back on the crimes of John Cannan as he moved in and out of prison.
World's Most Evil Killers
S8, EP20 "Eric Locke"Dublin man Eric Locke refuses to accept it when Sonia Blount, a mother of one, ends their relationship.
World's Most Evil Killers
S8, EP19 "Catherine Nevin"Catherine Nevin reports a break-in and violent attack at her pub, which leaves her husband dead.
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.
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.
