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World's Most Evil Killers
An in-depth look at some of the world's most dangerous murderers.
S8, EP7 "Richard Biegenwald"
Over a 25-year career of murder, Richard Biegenwald kills at least six people.
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.
S8, EP9 "Billy Mansfield Jr."
Billy Mansfield Jr. moved between Florida and Michigan, targeting vulnerable women and girls.
S7, EP14 "Paul Michael Stephani"
The story of a killer who was infamous for his whimpering confessions over the phone after each of his murders.
S8, EP20 "Eric Locke"
Dublin man Eric Locke refuses to accept it when Sonia Blount, a mother of one, ends their relationship.
S8, EP19 "Catherine Nevin"
Catherine Nevin reports a break-in and violent attack at her pub, which leaves her husband dead.
S8, EP18 "Charlotte and Linda Mulhall"
In March 2005, the gardaí recover human body parts from the Royal Canal in Dublin.
S8, EP17 "Colin Whelan"
When Mary Gough is found dead in her family home, her husband Colin Whelan appears shocked.
