Cambodian artist Bou Meng, one of only seven people known to have survived a notorious Khmer Rouge torture center, has died at 85.

The international court that judged the Khmer Rouge for its brutal 1970s rule ended its work by rejecting the last surviving leader's appeal.

Prosecutors are arguing the former head of the Khmer Rouge shared joint culpability for the regime’s atrocities in Cambodia in the 1970s, rejecting defense arguments that he should not be held responsible.

The last living leader from the inner circle of Cambodia’s brutal Khmer Rouge regime is in court Monday seeking to overturn his conviction on genocide charges before a long-running international tribunal.