Bought stolen iphone 4, can I track the seller down?

I recently bought a stolen iphone 4 off of craigslist, is there anyway I can track him down? Possibly via the # they used to verify their acc. Or their craigslist acc. (I know he can delete his acc., but it's probably still there considering you need to email craigslist support and wait for their reply)?

What carrier.email me