The cease-fire ended abruptly on 6 April 1994 when Habyarimana 's plane was shot down and he was killed ; the assassination served as the catalyst for the Rwandan Genocide , which began within a few hours . The interim government began killing Tutsi and politically moderate Hutu , in well-planned attacks across the country . Tutsi civilians began seeking refuge in United Nations premises , and thousands of refugees gathered inside the Amahoro Stadium
Habyarimana 's plane was shot down
Assassination of Juvénal Habyarimana and Cyprien Ntaryamira
Amahoro Stadium