A conversation with Nic Dunlop, the man who found and “wrote the book” on Kaing Guek Euv, better known as Comrade Duch.
He was the infamous head of S-21 - better known as Tuol Sleng - the Khmer Rouge prison and torture center.
Duch is the one who claimed Pol Pot ordered the murder of Haing Ngor - a conspiracy theory we dismiss.