MILAN (AP) — Mafia 'boss of bosses' Salvatore 'Toto' Riina has died in the hospital while serving multiple life sentences as the mastermind of a bloody strategy to assassinate Italian prosecutors and law enforcement trying to bring down the Cosa Nostra, Italian media reported Friday. He was 87. Riina died hours after the Justice Minister had allowed his family members bedside visits Thursday, which was his birthday, after he had been placed in a medically induced coma.