Among the murders he was convicted over are the 1992 killing of anti-Mafia prosecutors Giovanni Falcone and Paolo Borsellino, the deadly 1993 bomb attacks in Milan, Florence and Rome, and the kidnapping, torture and killing of the 11-year-old son of a mafioso-turned-state witness.The Mafia boss also oversaw racketeering, illegal waste dumping, money-laundering and drug-trafficking for the powerful Cosa Nostra organised crime syndicate."This means he was likely still part of structure where there is an exchange of favours between the Mafia and state, and where one can be given up in return for something," she explained.Gian Carlo Caselli, a judge and former prosecutor general, said that the arrest of Messina Denaro was an "exceptional... simply historical event" that might lead to significant developments in the ongoing inquiries into the 1993 bomb attacks that killed 10 people across Italy.Th country's Prime Minister Giorgia Meloni also thanked the armed forces for their work in detaining the "most important member of the mafia criminal group", adding: "This is a great victory for the state.""