The Conscience of Nhem En Steven Okazaki.

Nham En was 16 years old when he worked as a photographer at the notorious Tuol Sleng Prison, also known as S-21, where 17,000 people were tortured and killed from 1975 to 1979. Of the thousands of men, women, and children who posed for him, Nhem En did not offer aid or a single consoling word. Today, he defends his part in the horror, stating that everyone would do what he did. Only eight people are known to have walked out of S-21 alive. Three of them tell their remarkable stories of survival. - from website.