 During his time in prison he would enter in contact with members of the Communist Party, the Montoneros, the Fuerzas Armadas Revolucionarias (FAR) and the Fuerzas Armadas Peronistas.On August 15, 1972, he successfully escaped the Rawson maximum-security detention center and fled to Chile along with several members of FAR and the Montoneros.The escape operation involved, among other dramatic events, the seizure and redirection of a commercial airline flight.