Abdullah Shah (1965 – 20 April 2004) was an Afghan serial killer found guilty in Kabul of killing more than 20 people, including his wife. His sanctioned execution was the first in Afghanistan since the fall of the Taliban in late 2001.

Franz Friedrich Carl Gröpler (22 February 1868, Magdeburg – 30 January 1946, Magdeburg) was Royal Prussian executioner (German: Scharfrichter) from 1906 to 1937. Responsible for carrying out capital punishment in the Prussian provinces, he executed at least 144 people, primarily by beheading with an axe, but also with guillotines.

Franț Țandără (22 February 1930, Izbiceni, Olt County – 2 May 2004, Giurgiu) was a Romanian communist and self-described torturer.

Charles Edmund Cullen (born February 22, 1960) is an American serial killer. While working as a nurse, Cullen murdered dozens—possibly hundreds—of patients during a 16-year career spanning several New Jersey and Pennsylvania medical centers until finally being arrested in 2003.

Khun Sa (Burmese: ခွန်ဆာ, pronounced [kʰʊ̀ɰ̃ sʰà]; 17 February 1934 – 26 October 2007) was an ethnic Han drug lord and warlord. He was born in Hpa Hpeung village, in the Loi Maw ward of Mongyai, Northern Shan State, Burma.

William Patrick Fyfe (born February 27, 1955) is a Canadian serial killer convicted of killing five women in the Montreal area of Quebec, although he claims to have killed four others. He allegedly killed his first victim in 1979 at the age of 24.

Abu Bakar Ba'asyir (born 17 August 1938), also known as Abu Bakar Bashir, Abdus Somad, and Ustad Abu ("Teacher Abu") is a senior Indonesian Islamic and mujahideen figure who was the leader of Jamaah Ansharut Tauhid and Jemaah Islamiyah.