Matteo Denaro: Italy's most-wanted Mafia boss nabbed after 30 years on run

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Italy's No. 1 fugitive, a Mafia boss convicted of helping to mastermind some of the nation's most heinous slayings, was arrested Monday when he sought treatment at a private clinic in Sicily after three decades on the run.

Matteo Messina Denaro was tried in absentia and convicted of dozens of murders, including helping to mastermind, along with other Cosa Nostra bosses, a pair of 1992 bombings that killed top anti-Mafia prosecutors - and led the Italian state to stiffen its crackdown on the Sicilian crime syndicate. He faces multiple life sentences that he is expected to serve in a maximum security prison and under the particularly restrictive conditions reserved for top organized crime bosses.