Kang Kek Iew
Khmer Rouge prison chief convicted for mass atrocities.
Kang Kek Iew, also known as Comrade Duch, was a Cambodian war criminal and senior member of the Khmer Rouge regime. As chairman of the Tuol Sleng (S-21) prison camp and head of the Santebal, he oversaw the interrogation, torture, and execution of thousands of people, making him one of the most notorious figures of Democratic Kampuchea.
- born
- 17 November 1942
- died
- 2 September 2020
- field
- War crimes, prison administration
- nationality
- Cambodian
- known_for
- Chairman of Tuol Sleng (S-21) prison camp; convicted of crimes against humanity, murder, and torture
Lore & Background
Kang Kek Iew was born in 1942 in Kampong Thom Province to an ethnic Chinese family. A star pupil, he completed his Baccalaureate in mathematics, scoring second in the country. He began teaching in 1966 and joined the Communist Party of Kampuchea in 1967. After being arrested and witnessing torture at Prey Sar prison, he was released in 1970 and joined the Khmer Rouge rebels. He took the alias Comrade Duch and set up prisons M-13 and M-99, perfecting interrogation techniques. After the Khmer Rouge victory in 1975, he became director of Tuol Sleng prison, where he ordered the execution of prisoners, including women and children, and oversaw medical experiments and blood transfusions. He was the first Khmer Rouge leader tried by the Extraordinary Chambers in the Courts of Cambodia, convicted of crimes against humanity, murder, and torture, and sentenced to life imprisonment. Unlike many other cadres, he admitted his crimes, expressed repentance, and converted to Christianity.
Reader's Guide
Kang Kek Iew's significance lies in his role as the chief administrator of the Khmer Rouge's most notorious prison, Tuol Sleng (S-21), where an estimated 12,272 to 14,000 people died under his oversight. His trial by the Extraordinary Chambers in the Courts of Cambodia marked the first prosecution of a Khmer Rouge leader, setting a precedent for accountability. His detailed testimony, though containing discrepancies, provided rare insight into the regime's internal purges and torture methods. His admission of guilt and expression of repentance contrasted with other Khmer Rouge leaders, yet his legacy remains that of a war criminal responsible for systematic atrocities. The case underscores the challenges of transitional justice in Cambodia, where many senior figures escaped prosecution.
Did You Know?
- Kang Kek Iew was the first Khmer Rouge leader tried by the Extraordinary Chambers in the Courts of Cambodia.
- He ordered the execution of prisoners with annotations such as 'Smash them to pieces' on lists of detainees.
- He converted to Christianity and became a lay pastor after his wife was killed in 1995.
- He taught English and mathematics at a refugee camp in Borai, Thailand, after the fall of the Khmer Rouge.
Frequently Asked Questions
Who is Kang Kek Iew?
Kang Kek Iew, widely recognized by his Khmer Rouge alias Comrade Duch, was a Cambodian former schoolteacher who rose to become the senior official in charge of the S-21 (Tuol Sleng) detention center during the Democratic Kampuchea period.
What exactly did Kang Kek Iew do at Tuol Sleng?
As chairman of the prison and head of the Santebal security force, he personally directed the systematic interrogation, torture, and killing of thousands of detainees who passed through the site, making it one of the regime's most lethal instruments of repression.
What was Kang Kek Iew's legal conviction and sentence?
The Extraordinary Chambers in the Courts of Cambodia found him guilty of crimes against humanity, murder, and torture, and handed him a life-imprisonment sentence for his role in the S-21 atrocities.
When and where did Kang Kek Iew die?
He died on 2 September 2020 while still serving his life sentence in Cambodian custody, ending his life in the same country where he had carried out his crimes.
Why is Kang Kek Iew considered one of the most notorious figures of the Khmer Rouge era?
His direct, hands-on command over the S-21 prison—where thousands were interrogated, tortured, and executed—placed him at the very center of the regime's machinery of mass killing, distinguishing him from many other senior officials who operated at a greater remove.
More in Criminals & Outlaws 1-24
Elsewhere in the Criminals & Outlaws universe
Spotted an error? Know more?
This is a living reference — every entry is fact-audited, and reader corrections feed straight into our audit queue. Suggest an edit · See this site's audit record