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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
S8, EP7 "Richard Biegenwald"Over a 25-year career of murder, Richard Biegenwald kills at least six people.
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.
World's Most Evil Killers
S7, EP3 "Lewis Daynes"Exploring a case highlighting the many dangers of online grooming; on 17 February 2014, fourteen-year-old Breck Bednar was lured to a London flat before being killed by a fellow teenager.
World's Most Evil Killers
S7, EP12 "Charles Albright"A career criminal who was convicted of one murder and suspected of two others, Charles Albright was notorious for keeping eyes as trophies.
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.