Pol Pot
On the evening of April 15, 1998, just 2 days before the anniversary of Khmer Rouge's takeover of Cambodia, on April 17, 1975, Pol Pot died of a possible heart attack in his hut in the jungle. Thayer believed he killed himself with diazepam (Valium) and chloroquine to avoid trial. Pol Pot was cremated without any ceremony.