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Riley Mullins, accused of stealing a woman's purse, was sent to jail after he befriended the woman on Facebook.
The woman identified Mullins with the help of a distinctive triangle tattoo on his arm and informed police.
Mullins has now been dubbed as 'dumb' by Facebook users.
He allegedly stole the purse and ipod from the woman at a ferry terminal. "When she saw the picture of the suspect, she immediately recognised him as the person who assaulted her and robbed her," police officials said.