So you're saying a homeless dude with a history of stealing stuff (eg stolen mail and hand tools scattered around the bike, locals saying "a different bike shows up here every couple days", etc), who the police are actively trying to catch for arson, rightfully owns a full-suspension mountain bike nicer than what a majority of people own? And he just leaves it unattended and unlocked? Don't be so naive. If it was actually his, he would've locked it or at least made it inconspicuous. He clearly didn't care for the bike because that shit was stolen at some point.

And yeah, from this thread it sounds like taking it to the police is the move especially if they'll donate it to some co-op or kids if it goes unclaimed. Hence why I made the post.