question: In what year did the Uganda President's regime kill the first prime minister of Uganda?
answer: 1972
context: Title: Julius Oketta
  Passage: Major General Julius Facki Oketta (3 October 1956 – 5 November 2016) was a military officer in Uganda.  He was a senior commander in the Uganda People's Defence Force (UPDF).  Before his death, he served as the "Director of National Emergency Coordination and Operations", in the Office of the Prime Minister of Uganda.  In October 2013, the President of Uganda nominated and the Secretary General of the United Nations endorsed General Oketta to join the advisory group of the United Nations (UN) Central Emergency Response Fund (CERF).  In 2004, at the rank of Brigadier, he was a member of the pioneer class to attend the Uganda Senor Command and Staff College, at Kimaka, Jinja, Eastern Uganda, under its first Commandant, Lieutenant General Ivan Koreta.  Oketta died in the early morning hours on 5 November 2016.
  Title: Benedicto Kiwanuka
  Passage: 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.  He was murdered by Idi Amin's regime in 1972.
  Title: Idi Amin
  Passage: Idi Amin Dada ( ;  1923 2816 August 2003) was a Ugandan political leader and military officer who was the President of Uganda from 1971 to 1979.
citations: Benedicto Kiwanuka Idi Amin