 On 21 June 1976, the labour relations manager of Swift (an American food processing company), Osvaldo Raúl Trinidad was shot and killed outside his home in the La Plata suburb of Buenos Aires after coming under fire from a carload of masked Peronist guerrillas.On 1 July 1976, a carload of Montoneros shoot and kill Army Sergeant Raul Godofredo Favale in the Ramos Mejía suburb of Buenos Aires.On 2 July 1976 the Montoneros detonated a powerful bomb in the Argentine Federal Police in Buenos Aires, killing 24 and injuring 66 people.