Crime Type - Violent Crime

Randy Steven Kraft became one of America's most infamous serial killers after murdering at least 16 young men and boys across California, Oregon, and Michigan between 1972 and 1983. Often referred to as the "Scorecard Killer" because of a coded list discovered in his possession after his arrest, Kraft is suspected by investigators of murdering more than 60 victims. Convicted of 16 murders, he was sentenced to death in California, where he remains incarcerated.

Arthur John Shawcross became one of America's most infamous serial killers after murdering 14 people in New York between 1972 and 1989. After serving a prison sentence for killing two children, Shawcross was released on parole and later went on to murder at least 12 women in the Rochester area. His crimes remained unsolved for several years before investigators linked him to the murders through surveillance, witness testimony, and forensic evidence. Shawcross was sentenced to 250 years in prison, where he remained until his death in 2008.

Richard Beasley became known as the “Craigslist Serial Killer” after orchestrating a series of murders involving fake job advertisements posted online in Ohio during 2011. Prosecutors alleged Beasley used Craigslist employment listings to lure financially vulnerable men to isolated rural locations where they were robbed, shot, and buried in shallow graves. The case generated national attention because it exposed how online classified platforms could be exploited by violent offenders targeting strangers. Investigators later connected Beasley to multiple killings and attempted murders linked to the fake employment scheme. The horrifying combination of internet deception, execution-style murders, and burial sites hidden in wooded areas made the case one of the most infamous online predator serial killer investigations in modern American criminal history.

Robert Clive Napper became one of the United Kingdom's most infamous serial killers after murdering Rachel Nickell in 1992 and Samantha Bisset and her four-year-old daughter, Jazmine, in 1993. Before his identification, Napper committed numerous violent sexual assaults across South East London, becoming known as the "Green Chain Rapist." Advances in DNA profiling eventually linked him to the murders after years of investigative failures, making his case one of Britain's most significant forensic breakthroughs.

Colin Ireland became one of the United Kingdom's most infamous serial killers after murdering five gay men in London over a seven-week period in 1993. Seeking notoriety, Ireland later admitted he deliberately set out to become a serial killer after reading an article suggesting Britain had none. Nicknamed the "Gay Slayer," he targeted men he met in London pubs before strangling them in their own homes. His brief but deadly murder spree shocked Britain and remains one of the country's most disturbing examples of predatory serial homicide.

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.

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.

Frederick Walter Stephen West became one of the United Kingdom's most infamous serial killers after murdering numerous young women and girls between the late 1960s and 1980s. Working both alone and with his wife, Rose West, he targeted vulnerable victims, many of whom disappeared after visiting the couple's home at 25 Cromwell Street in Gloucester. The discovery of multiple bodies buried beneath the property exposed one of Britain's most shocking serial murder cases and permanently cemented Fred West's place among the country's most reviled offenders.