A man looks at a portrait of former head of the Tuol Sleng prison Kaing Guek Eav, also known as Duch, at the Tuol Sleng genocide museum in Phnom Penh on September 2, 2020. - Kaing Guek Eav, 77, better known by his alias Duch, the chief torturer behind Cambodias genocidal Khmer Rouge, died on September 2 while serving a life sentence for crimes against humanity, leaving just one surviving leader of the regime that killed an estimated two million people in the 1970s. (Photo by TANG CHHIN Sothy / AFP) (Photo by TANG CHHIN SOTHY/AFP via Getty Images) (Photo: TANG CHHIN SOTHY via Getty Images)
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