Félix-Albert Pel (12 June 1849 – 9 June 1924) was a French suspected serial killer. He was nicknamed The Watchmaker of Montreuil.

Bobby Jack Fowler (June 12, 1939 – May 20, 2006) was an American rapist, murderer, and suspected serial killer who was active in the United States and Canada from 1973 to 1995. He died in prison of lung cancer during a 16-year sentence following a conviction for rape, kidnapping and attempted rape in Newport, Oregon, in 1996 (for an attack that took place in 1995).

Captain Henry Wirz (born Hartmann Heinrich Wirz; November 25, 1823 – November 10, 1865) was a Confederate States Army officer, doctor, and convicted war criminal best known for commanding Andersonville Prison during the American Civil War. Born in Zurich, Switzerland, Wirz immigrated to the United States in 1849 after being exiled from the canton of Zurich following a conviction of embezzlement and fraud.