The defendant is kaing guek eav , known as duch , who ran the notorious tuol sleng interrogation centre .
被告是kaingguekeav常被称为duch，他建立了臭名昭著的tuolsleng审讯中心。
On monday , a united nations-backed tribunal convicted kaing guek eav , known as duch , of war crimes and crimes against humanity - the first major khmer rouge figure to be tried since the regime was overthrown .
