Kaing Guek Eav, also known as Duch, who ran the notorious Toul Sleng, a top secret detention center for the worst "enemies" of the state, appears on a television screen of the press center of the U.N.-backed war crimes tribunal in Phnom Penh, Cambodia, Monday, July 26, 2010. The tribunal opened Monday to hand down a verdict in the first trial of a senior member of the Khmer Rouge regime that turned Cambodia into a vast killing field three decades ago. (AP Photo/Heng Sinith)

Photo by: Heng Sinith

Kaing Guek Eav, also known as Duch, who ran the notorious Toul Sleng, a top secret detention center for the worst "enemies" of the state, appears on a television screen of the press center of the U.N.-backed war crimes tribunal in Phnom Penh, Cambodia, Monday, July 26, 2010. The tribunal opened Monday to hand down a verdict in the first trial of a senior member of the Khmer Rouge regime that turned Cambodia into a vast killing field three decades ago. (AP Photo/Heng Sinith)