Lt. Colonel Roberto Federico Souper Onfray is a Chilean military officer who launched an unsuccessful coup d'état against the Marxist regime of Salvador Allende, surrounding the presidential palace with a tank regiment. 22 civilians were killed during the brief coup attempt, including Leonardo Henrichsen, a Swedish-Argentine news photographer filming the events. In 2012 Souper was charged in Chile, along with several others, with the murder of Chilean folk singer Victor Jara in 1973. At the time, Souper was reported to be in a rest home, suffering from Alzeimer's.