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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, EP9 "Billy Mansfield Jr."Billy Mansfield Jr. moved between Florida and Michigan, targeting vulnerable women and girls.
World's Most Evil Killers
S8, EP13 "Jordan Monaghan"Jordan Monaghan kills his 24-day-old daughter Ruby on New Year's Day in January 2013.
World's Most Evil Killers
S6, EP3 "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
S6, EP11 "John Allen & Lee Malvo"The story of the Beltway sniper attacks; John Allen and his teenage accomplice carry out a brutal series of shootings that kill ten people.
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.