Question: In what year did the Uganda President's regime kill the first prime minister of Uganda?
Sentence (from "Benedicto Kiwanuka"): Benedicto Kagimu Mugumba Kiwanuka (8 May 1922 – 22 September 1972) was the first prime minister of Uganda, a leader of the Democratic Party, and one of the persons that led the country in the transition between colonial British rule and independence.
Relevant evidence: Yes