Guillermo León Sáenz Vargas (22 July 1948 – 4 November 2011), more commonly known by his nom de guerre Alfonso Cano, was the commander of the militant group known as Revolutionary Armed Forces of Colombia (Fuerzas Armadas Revolucionarias de Colombia, FARC). He succeeded founder Manuel Marulanda (alias Sureshot, in ) in March 2008 and commanded the Marxist rebel group until being killed in action by the Colombian Army. Early life Born into an upper-class family in Bogotá, Cano began his studies in anthropology at the National University of Colombia in 1968, where he became a member and leader of the Communist Youth. He was arrested by Colombian police directed by Rodrido Avendaño, layer of the moment who carried an investigation because of communist suspicions. It was there that he met members of FARC, who invited him often to lecture about Marxism for a number of guerrilla columns. He dropped out of university to join the group and devoted himself to political activism. Ideologically he was described as a hardliner, with the belief that his ideas and side would ultimately win. Joining FARC During the late 1970s Cano is believed to have joined FARC, where he quickly rose through the ranks, working with the group's co-founder and chief ideologue, Jacobo Arenas. His main role was originally to serve as a sort of political commissary for the urban network of the guerrilla in Bogota, and in 1978 he was appointed chief of finances for the Central High Command. A search warrant on his apartment, where he lived with his first wife (Maria Eugenia) and son (Federico), ended in his arrest in 1981 and imprisonment in the La Modelo Penitentiary, where he founded a library. He was freed in 1983 as a result of the amnesty offered by the government of president Belisario Betancur. He soon moved to the mountains to join the guerrilla soldiers, but instead of active combat he was sent to Casa Verde, the headquarters of the FARC commanders, in La Uribe (Meta), where he was recognized as an intellectual and as such was part of a number of peace dialogues with the government. His main role was to encourage the growth of the Coordinadora Guerrillera Simón Bolívar, a movement to join all guerrillas operating at the time in Colombia. With communism's collapse in Europe in 1989, Cano argued that the Soviet model had failed, and the FARC should develop