It was one of the worst genocides since the Nazi era. The brutal Khmer Rouge took over Cambodia in 1975 and terrorized the population for four years, killing more than one million people, according to Georgetown University.
One of its infamous leaders died Thursday, escaping judgment for war crimes at the hands of a tribunal.
Ieng Sary passed away at a hospital in the capital Phnom Penh at age 87, a United Nations-backed court for Cambodia said. He was the foreign minister under Khmer Rouge dictator Pol Pot, otherwise known as “Brother number 1.”