How do you know that's true?
Be cautious.
Do you want to help him? Hire him again, recommend him, give him some food, teach him to save money, slowly he'll lift himself out of trouble as long as he doesn't fall into PNP like some unfortunately do. Is he local? Maybe if things didn't work out on his own it's time to go back home.
I've seen some in Seattle and Denver, not so much in San Francisco where they've been in that lifestyle for a long time.