Victims of Khmer Rouge. This photo is taken in Tuol Sleng Genocide Museum in Phnom Penh. In Tuol Sleng were tortured victims of Khmer Rouge before executing in Killing Fields near Phnom Penh. Only 7 people from about 20000 prisoners in Tuol Sleng (also known as S-21) survived. There were taken photos of all victims of Tuol Sleng - some of them you can see in this photo. Nowdays you can visit a museum in this place, which is situated in a centre of Phnom Penh.
Another my photos from Phnom Penh you can find on this link: PHNOM PENH