A small number of Western prisoners, many picked up at sea by Khmer Rouge patrol boats, were detained, tortured and killed at the infamous “Toul Sleng” prison in Phnom Penh between April 1976 and December 1978. In Annie Goldson’s deeply moving docu BROTHER NUMBER ONE (2011, 97 min) New Zealander Rob Hamill confronts Comrade Duch, the Khmer Rouge leader who ordered the torture and execution of Hamill’s brother Kerry.