Explore Killers

Aaron Campbell became one of Scotland's most infamous child killers after abducting and murdering seven-year-old Megan Montgomery in Airdrie, North Lanarkshire, in 2020. Campbell lured the child from outside her home before killing her and concealing her body in nearby woodland. Following an extensive police investigation, he was convicted of murder and sentenced to life imprisonment with one of the longest minimum terms imposed in Scotland for the murder of a child.

Adolf Eichmann became one of the most infamous figures of the Holocaust as a senior SS officer responsible for coordinating the deportation of millions of Jews and other persecuted groups to Nazi ghettos and extermination camps during the Second World War. Following Germany's defeat, Eichmann fled Europe and lived under a false identity in Argentina before being captured by Israeli intelligence in 1960. He was convicted of crimes against humanity, war crimes, and crimes against the Jewish people before being executed in 1962.

Adolfo de Jesús Constanzo became one of Mexico's most notorious serial killers after leading a violent criminal cult that combined ritualistic beliefs with narcotics trafficking during the 1980s. Operating primarily in Mexico City and Matamoros, Constanzo and his followers carried out numerous murders as part of ceremonies they believed would provide supernatural protection and success. The discovery of multiple victims at his ranch in 1989 exposed one of the most disturbing criminal conspiracies in Mexican history.

Adrian Ernest Bayley became one of Australia’s most notorious violent offenders after abducting, raping and murdering Jill Meagher in Melbourne in 2012. The murder shocked Australia because Meagher disappeared while walking home through Brunswick after a night out with friends, sparking enormous public fear and grief across Victoria. Bayley’s extensive violent criminal history later generated intense outrage after it emerged he had previously committed multiple sexual and violent offenses before being released on parole. The case became a defining moment in Australian discussions surrounding parole laws, repeat sex offenders and women’s safety, while Jill Meagher’s death triggered massive public vigils and nationwide mourning.

Aileen Wuornos was an American serial killer who murdered multiple men in Florida between 1989 and 1990. Operating primarily along highways, she targeted men she encountered while working as a sex worker. Her case gained widespread attention due to her background, her claims of self-defense, and the rarity of a female serial killer receiving the death penalty. Wuornos was convicted of multiple murders and executed in 2002.

Alphonse Gabriel "Al" Capone became one of the most notorious organized crime figures in American history after dominating Chicago's underworld during the Prohibition era. As the leader of the Chicago Outfit, Capone oversaw bootlegging, gambling, prostitution, extortion, and numerous violent crimes throughout the 1920s. Although strongly linked to many murders, including the infamous Saint Valentine's Day Massacre, Capone was ultimately convicted of tax evasion rather than homicide. His criminal empire and public notoriety made him one of the most recognizable gangsters of the twentieth century.

Al-Mutahan McLean is an American man convicted of the prolonged abuse and murder of his 10-year-old son in Dayton, Ohio, in 2019. The case became nationally known due to the sustained nature of the abuse and the severity of the conditions the child endured over several years. He later pleaded guilty to multiple charges and received a lengthy prison sentence, with the case highlighting both extreme intra-family violence and systemic failures in child protection oversight.