Luis Alfredo Garavito Cubillos (25 January 1957 – 12 October 2023), also known as La Bestia ("The Beast") or Tribilín ("Goofy"), was a Colombian serial killer, sex offender, pedophile, and necrophile who sexually assaulted 200 victims before murdering 193 victims, mostly young men and boys from 1992 to 1999 in western Colombia.

Gary Ray Bowles (January 25, 1962 – August 22, 2019) was an American serial killer who was executed in 2019 for the murders of six men in 1994. He is sometimes referred to as The I-95 Killer since most of his victims lived close to the Interstate 95 highway.

Manuel Delgado Villegas (Spanish pronunciation: [manw'el delˈɣaðo βiˈʎeɣas]; 25 January 1943 – 2 February 1998), also known as El Arropiero,[a] was a Spanish serial killer active between 1964 and 1971. Delgado claimed to have carried out 48 murders in Spain, Italy and France – of these cases the Spanish police were only able to investigate twenty-two in Spain and considered him the definite perpetrator of seven.

Evsei Borisovich Agron (; Russian: Евсей Борисович Агрон; 25 January 1932 – 4 May 1985) was a Soviet-American mobster and boss of New York City's Russian mafia during the 1970s and 1980s. Known for his cruelty, he was called the "Godfather" of the Russian American mafia.

Luis Alfredo Garavito Cubillos (25 January 1957 – 12 October 2023), also known as La Bestia ("The Beast") or Tribilín ("Goofy"), was a Colombian serial killer, sex offender, pedophile, and necrophile who sexually assaulted 200 victims before murdering 193 victims, mostly young men and boys from 1992 to 1999 in western Colombia.