In this photo released by the Extraordinary Chambers in the Courts of Cambodia, Kaing Guek Eav, the former chief of the Khmer Rouge's notorious S-21 prison, now known as Tuol Sleng genocide museum, is seen in the court room of the U.N.-backed tribunal, in Phnom Penh, Cambodia, Monday, Nov. 23, 2009. Also known as Duch, Kaing Guek Eav is charged with crimes against humanity, war crimes, murder and torture, and is the first of five defendants scheduled for long-delayed trials by the tribunal. AP Photo logo AP Photo 3 months ago

In this photo released by the Extraordinary Chambers in the Courts of Cambodia, Kaing Guek Eav, the former chief of the Khmer Rouge's notorious S-21 prison, now known as Tuol Sleng genocide museum, is seen in the court room of the U.N.-backed tribunal, in Phnom Penh, Cambodia, Monday, Nov. 23, 2009. Also known as Duch, Kaing Guek Eav is charged with crimes against humanity, war crimes, murder and torture, and is the first of five defendants scheduled for long-delayed trials by the tribunal.