One of Italy’s most wanted fugitives is behind bars after investigators used Facebook to hunt him down in Mexico.

Facebook pictures posted under the mafioso's alias - Saverio Garcia Galiero – show a happy man living large south of the border – beaming as he takes the sun at the beach or relaxing with his arm draped around a pretty companion.

But not all his “friends” liked his posts. Back in Naples, where he was born, detectives tasked with finding fugitives were studying his timeline to confirm his real identity: Giulio Perrone, 65, a convicted drug smuggler who had been running from the law for more than two decades. The picture they posted Saturday tells a different story.

“This arrest is part of a larger strategy being coordinated by the anti-crime division of the Italian police to capture mafia fugitives who have been taking refuge abroad for many years,” authorities said in a statement.