People executed by Cambodia by firearm

Son Sen (Khmer: សុន សេន 12 June 1930 – 15 June 1997), alias Comrade Khieu (សមមិត្តខៀវ), was a Cambodian Communist politician and soldier. A member of the Central Committee of the Communist Party of Kampuchea/Party of Democratic Kampuchea, the Khmer Rouge, from 1974 to 1992, Sen oversaw the Party's security apparatus, including the Santebal secret police and the notorious security prison S-21 at Tuol Sleng.