After bomb attacks in Capaci and Via D'Amelio that killed prosecutors Giovanni Falcone and Paolo Borsellino , the arrest of Salvatore Riina on 15 January 1993 and the introduction of strict prison regime ( article 41-bis ) , Cosa Nostra embarked on a terrorist campaign in which Matteo Messina Denaro played a prominent role
Capaci
Capaci bombing
Matteo Messina Denaro