2) Mobutu Sese Seko (Democratic Republic of Congo)
Mobutu Sese Seko was the president of the Democratic Republic of Congo between 1965 and 1997. He killed innumerable number of people during his tenure as president. He murdered opposition leaders in broad daylight. He forced all television stations to start the evening news with an image of him descending through clouds from the heavens.
1) Idi Amin Dada (Uganda)
Idi Amin Dada of Uganda tops the list. He was the president of Uganda between 1971 and 1979. He murdered more than 500,000 Ugandans, including foreign investors, opposition leaders and archbishops. He also confirmed to eating human flesh. The mad man raped almost all the beautiful girls surrounding his palace.
He gave himself numerous title including: His Excellency President for Life, Field Marshal Al Hadji Dr. Idi Amin, VC, DSO, MC, Lord of All the Beasts of the Earth and Fishes of the Sea and Conqueror of the British Empire in Africa.