At least 1.7 million people perished under the Khmer Rouge 1975 - 1979 rule . CNN 's Dan Rivers tracked down the alleged chief interrogator at S-21 , a man named Ta Chan who is living in a former Khmer Rouge stronghold in western Cambodia . The ultra - Maoists were bent on creating agrarian utopia . War in court began earlier this year after more than a decade in the works . CNN documentary on Cambodia 's failure to confront violent crime .
At least 1.7 million people perished under the Khmer Rouge 1975 - 1979 rule . The ultra - Maoists were bent on creating agrarian utopia . War in court began earlier this year after more than a decade in the works . CNN documentary on Cambodia 's failure to confront violent crime .