An international court convened in Cambodia to judge the brutalities of the Khmer Rouge regime that caused the deaths of an estimated 1.7 million people in the 1970s ends its work Thursday.

Sokhary Chau said his mother managed to keep her seven children alive for four years, surviving Cambodia's civil war to deliver them safely to the U.S.

Kaing Guek Eav oversaw Phnom Penh's notorious S-21 prison, where thousands of people were executed and tortured during the Khmer Rouge's terrifying rule in the 1970s.