Oh my God! People of color? Gee, that's never happened before.

I don't put up with theives. If they were walking in that area, then I'm guessing they live in that area. If I were you, I'd go looking for them. Go around the same time of day. You're likely to get more info on who did it from one, than them as a group, but you never know. I wouldn't put it past me to follow one of them home, hide something of theirs when they're not looking like they did to you, and suggest you might find their item, if they can find yours; a trade.

Or, be normal, find one of them, then contact police to see if you can get the answer you want. But who would admit they stole something to a policeman?

Good luck.

jeff