Lotta Continua
Despite being exonerated (he was not in the room when Pinelli fell), the far-left organisation "Lotta Continua" held Calabresi responsible for the death of Pinelli, and in 1972 he was murdered by left-wing militants in revenge. Adriano Sofri and Giorgio Pietrostefani, former leaders of Lotta Continua, were convicted of plotting Calabresi's assassination, while members Ovidio Bompressi and Leonardo Marino were sentenced for carrying it out.