This opposition to leftists within the labor movement intensified following Peronists ' return to power in a March 1973 electoral landslide . Finding common cause with Perón 's influential private assistant , José López Rega , Miguel helped him finance '' El Caudillo '' ( " The Strongman " ) , a fascist periodical that served as the public relations arm of López Rega 's newly organized death squad , the Triple A. Miguel 's ties to the group were first exposed after June 20 , 1973 , when UOM heavies reportedly helped the Triple A ignite a riot at a massive gathering in honor of Perón 's return to Argentina . The UOM 's presumptive role , though minor , forced Miguel attend a summit with his archenemies , the violently leftist Montoneros , in which he denied complicity and arrived at a mutual understanding . This cordiality was shattered , however , by the September 25 assassination of CGT head José Ignacio Rucci , an act for which the Montoneros took credit and which turned Miguel into their implacable enemy . The UOM then took part in a February 1974 police coup that led to the violent exit of leftist Córdoba Province Governor Ricardo Obregón Cano , elected in 1973 as a Peronist ( FREJULI ) candidate , and Miguel helped persuade the aging Perón to promote a right-wing Admiral and personal friend , Emilio Massera , as Head of the Navy , as well as to break with leftist Peronists shortly before his July 1974 passing
riot
Ezeiza massacre
Lorenzo Miguel