On August 7, 2014, Khieu Samphan, President of Democratic Kampuchea 1976-1979 received life sentence for crimes against humanity during the Cambodian Genocide.
Nowdays, his signature is difficult to get. 10 years ago I was lucky to contact him, and he signed / twice / the photo I sent him, he also sent me a handwritten letter and a typed letter. Perhaps you would like to see and read them. Best, Zoltán