The first man to be sentenced over his part in Cambodia's Khmer Rouge mass killings, Comrade Duch, was convicted on Monday of war crimes and crimes against humanity for running a prison centre where thousands were tortured and killed in the 1970s.
The judges jailed him for 35 years, but because of time served, he will spend only another 19 in prison.
Survivors have expressed outrage and prosecutors are considering an appeal.
A former pupil of Comrade Duch, Channary, was taught maths by him when attending Skuon high school in Cambodia's Kompong Cham province in the 1960's.
She lost many members of her family under the Khmer Rouge and now lives in the United States where she's the leader of the Cambodian Women's Organisation in San Jose.
First broadcast 26 July 2010
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