Malcolm Green
Malcolm Green is a murderer featured in World's Most Evil Killers, Season 6, Episode 10 (2022)
Marc Dutroux
Belgian convicted pedophile and serial killer, Marc Dutroux, is infamous for his role in the kidnapping, torture, and murder of several girls between 1995 and 1996.
Marc Sappington
Marc Sappington is the subject of this documentary, known as 'The Kansas City Vampire' for his violent crimes
Marcel Petiot
Marcel Petiot was a French serial killer active during World War II, who lured victims under the pretense of helping them escape Nazi-occupied France. Instead, he murdered them and disposed of their bodies. After the war, authorities uncovered the extent of his crimes, leading to his arrest and trial. Petiot was convicted and executed by guillotine in 1946, and his case remains one of the most infamous in French criminal history.
Marcus Wesson
Marcus Wesson is a convicted serial killer who confessed to killing nine of his children and two other women in Fresno, California, in 2005.
Marie Hilley
Marie Hilley is a serial killer, also known as The Poisonous Secretary, who was convicted for multiple murders in the United States.
Mark Barton
Mark Barton was an American mass murderer responsible for the 1999 Atlanta day trading office shootings. He killed multiple people at two offices after earlier murdering members of his own family. Barton later died by suicide, ending a multi-day manhunt. The case shocked the public and raised concerns about workplace violence and financial stress-related crimes.