Luka Magnotta
Luka Magnotta, infamously known as the 'Canadian cannibal', is a convicted killer for his series of gruesome crimes.
Lynda Block
Lynda Block was a convicted cop killer in Alabama, facing execution after 45 years.
Maksim Gelman
Maksim Gelman is a killer who committed a stabbing spree in New York, as depicted in various crime documentaries.
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.