Nuon Chea

Nuon Chea (Khmer: នួន ជា; born Lao Kim Lorn; 7 July 1926 – 4 August 2019), also known as Long Bunruot (ឡុង ប៊ុនរត្ន) or Rungloet Laodi (រុងឡឺត ឡាវឌី; Thai: รุ่งเลิศ เหล่าดี), was a Cambodian politician and revolutionary who was the chief ideologist of the Khmer Rouge. He also briefly served as acting Prime Minister of Democratic Kampuchea. He was commonly known as "Brother Number Two" (បងធំទី២), as he was second-in-command to Khmer Rouge leader Pol Pot, General Secretary of the Party, during the Cambodian genocide of 1975–1979.