If you’re like most of us, your Facebook friends are a mix of people you actually know and like and a bunch of random people you think you might have drunkenly met at a party in 2009.

Here’s one big benefit of all those fake friends.

A woman in Jupiter, Florida got her purse stolen by four men when she got out of her car last week. Two of the four guys were wearing masks, but two of them weren’t — and one of them was 29-year-old Quincy McGee.

She recognized him because they’re Facebook friends. It’s not clear where they met, and they obviously didn’t know each other very well. But she knew it was him and forwarded his profile to the cops.

He was arrested and charged with robbery with a firearm. There’s no word on whether the other guys have been caught yet.