On 19 July , with an attack in via D'Amelio , in Palermo , Paolo Borsellino was killed . The attack was claimed again with the tag " Falange Armata " . According to the prosecutor Nino di Matteo , the murder of Borsellino was executed in order to " protect the negotiation from the danger that judge Borsellino , become aware about it , revealed it and denounced publicly its existence , and so compromise irreversibly the desired result " . From the place of the massacre Borsellino 's red notebook , in which the magistrate annotated all his investigative intuitions and never separated from it , was not found . After the via D'Amelio bombing , the decree " Scotti-Martelli " was converted in law and over 100 particularly dangerous mafiosi inmates were transferred to Asinara prison and Pianosa prison , where they were submitted to the 41-bis regime that was applied even to other 400 mafiosi inmates
attack in via D'Amelio
Via D'Amelio bombing
State-Mafia Pact