Benito de Soto Aboal (22 March 1805 – 25 January 1830) was a Spanish pirate who operated in the Atlantic during the early 19th century. He was the captain of the pirate ship Defensor de Pedro, sometimes incorrectly named as the Burla Negra ("Black Joke"), that was responsible for several piracies in the Atlantic in 1828, in a period of increased piracy following the independence of the new states of South America.

Lucious Boyd (born March 22, 1959) is an American convicted murderer, rapist, and suspected serial killer who is currently on death row in Florida. Boyd was sentenced to death for the 1998 rape and murder of 21-year-old Dawnia Dacosta and is a suspect in at least ten other homicides and disappearances.

Per Michael "Joe" Ljunggren (22 March 1962 – 17 July 1995) was a Swedish outlaw biker and gangster who served as the first national president of the Bandidos Motorcycle Club in Sweden. Ljunggren was a central figure in the Nordic Biker War, in which the Bandidos feuded with the Hells Angels.

During the weekend of July 4, 1999, white supremacist Benjamin Smith targeted ethnic and racial minorities (with victims including nine Orthodox Jews, two African-American men, and a Korean man), in a three-day drive-by shooting rampage in the U.S. states of Illinois and Indiana, after which he committed suicide.

Marcel André Henri Félix Petiot (17 January 1897 – 25 May 1946) was a French medical doctor and serial killer. He was convicted of multiple murders of Jews after the discovery of the remains of 23 people in the basement of his home in Paris during World War II.