World's Most Evil Killers

Dublin man Eric Locke refuses to accept it when Sonia Blount, a mother of one, ends their relationship.

Catherine Nevin reports a break-in and violent attack at her pub, which leaves her husband dead.

In March 2005, the Gardaí recovered human body parts from the Royal Canal in Dublin.

When Mary Gough is found dead in her family home, her husband Colin Whelan appears shocked.

Less than 20 minutes after dropping her children off at school, Rachel O'Reilly is murdered.

In April 1997, 27-year-old Rachel McGrath is stabbed to death by an unknown attacker in a car park.

In 2022, Danville Neil is finally jailed for the brutal 1993 murders of a WWII veteran and his sister.

Jordan Monaghan kills his 24-day-old daughter Ruby on New Year's Day in January 2013.

Jane Longhurst vanishes after making a plan to go swimming with her friend's boyfriend.

When Carol Jarvis disappears, her husband tells friends and family that she's simply gone on a little holiday.

Wayne Adam Ford is an American serial killer who strangled and dismembered three of his victims.

Billy Mansfield Jr. moved between Florida and Michigan, targeting vulnerable women and girls.

Police in Aurora, Colorado find the body of a young man in his own home with a bullet wound to the head.

Over a 25-year career of murder, Richard Biegenwald killed at least six people.

Richard Kuklinski claims to have murdered over 100 people for New York and New Jersey's crime families.

Randy Kraft, a well-spoken, well-respected computer expert...and a prolific serial killer.

In January 1973, 20-year-old mother of one Dawn Magyar vanishes while on a shopping trip in Owosso, Michigan.

Steven Dean Gordon and Frank Cano murdered at least four sex workers in California between 2012 and 2013.

In 1999 and 2000, John Eric Armstrong cruises the streets of Detroit looking for sex workers.

In 2007, single mother of three Paige Birgfeld goes missing.