In June 1983 , judge Mario Amato , who was investigating the links between the Terza Posizione and neo-fascist terrorism , was assassinated by a commando formed by Gilberto Cavallini and Luigi Ciavardini . The instigators of the killing were NAR members Francesca Mambro and Valerio Fioravanti . ( Both were convicted of other terrorist killings and the 1980 Bologna massacre ) . The judge had been investigating in isolation from his superiors , like the chief prosecutor Giovanni De Matteo , a member of Propaganda Due , and under heavy attacks from his colleague Antonio Alibrandi , a right-wing sympathizer and father of Alessandro Alibrandi , member of Terza Posizione and NAR
Bologna massacre
Bologna massacre
Terza Posizione