genocide tribunal ruled 1998 . Leader was Ieng Sary who died in from 1975 to 1979 . Charges brought against five top leaders . `` Duch '' sentenced to life , five verdicts pending .
Khmer Rouge ruled from 1975 to 1979 . Leader was Pol Pot who died in 1998 . Charges brought against five top leaders . `` Duch '' sentenced to life , two verdicts pending .