 Shortly thereafter, the Argentine Armed Forces murdered his wife Ana María Villareal along with 15 other militants in the events later known as the "Trelew Massacre".In Chile, Santucho and his companions were granted safe passage by then president Salvador Allende to continue onwards to La Habana, Cuba.Santucho returned to Argentina in November 1972 in order to resume his position as leader of PRT-ERP.