John Childs is a hitman confessed to killing six people in two separate documentaries.
Adolf Eichmann was a high-ranking Nazi official responsible for organizing and facilitating the mass deportation of Jews during the Holocaust.
Anatoly Onoprienko is a notorious Ukrainian serial killer known as 'The Beast of Ukraine'
Jimmy Maketta is the subject of various true crime titles, indicating he is alleged to be a criminal responsible for a crime.
Bobby Long, identified as a serial killer, picked his victims from newspaper ads
Kenneth Noye is a known gangster convicted for the murder resulting from a road rage incident
Mark Castellano admitted to committing a crime, as evidenced by his confession in the year 2015.
Kris Ertmann is accused of hiring a hitman to kill his estranged wife in 2018.
Mark Twitchell is the individual identified as a killer, known for being accused and convicted of abducting and murdering Alberta farmer Johnny Altinger in 2008.
Michael Barisone is the person who shot and killed Lauren Kanarek in 2022
Jaclyn Edison is a person accused of participating in an Austin murder plot
Nick Shaughnessy is a person who spoke about his involvement in a plot to kill his parents
Mark Howerton is accused and stands trial for the murder of Cayley Mandadi.
Henri Landru is a notorious serial killer, also known as the 'French Bluebeard', who was convicted for killing multiple women in France during the early 1900s.

Paul Charles Denyer is an Australian serial killer responsible for a series of murders in the Frankston area of Victoria during 1993. His crimes caused widespread fear in the community, as he targeted young women in public spaces, attacking them without warning. The case quickly became one of Australia’s most notorious serial murder investigations at the time. Denyer was arrested in 1993 after a major police operation and later confessed to multiple killings. He was convicted and sentenced to life imprisonment with no possibility of parole for many years. His case remains significant in Australian criminal history due to the random nature of his attacks and the intense public and media attention they generated.