Duch (Kaing Guek Eav)

Biography

Born Kaing Guek Eav on November 17, 1942, in Kampong Thom province, Duch was a mathematics teacher before joining the Khmer Rouge. He was appointed commander of the S-21 security prison in 1975 — a facility he ran with meticulous, bureaucratic precision, keeping detailed files on every prisoner, overseeing systematic torture protocols, and personally editing confession documents extracted under duress. He was directly responsible for the deaths of an estimated 12,000–17,000 people. Among the methods used at S-21: waterboarding, electric shock, nail removal, and hanging prisoners by their arms tied behind their backs. Duch reviewed confession transcripts and determined the fate of prisoners — usually death at Choeung Ek killing fields. After Vietnam's invasion, Duch disappeared, converted to Christianity, and worked for a Christian NGO under a false name for nearly two decades. He was discovered in 1999 by journalist Nic Dunlop, who recognized him from historical photographs. He was arrested, and his trial at the ECCC began in 2009. He was the first Khmer Rouge leader to be convicted — found guilty of crimes against humanity and war crimes in 2010 and genocide on appeal in 2012. His sentence was ultimately extended to life imprisonment. He died in Phnom Penh on September 2, 2020. His cooperation with the tribunal and apparent remorse were genuine enough to make him a complex and disturbing figure — a perpetrator who understood exactly what he had done.

Key Battles