I have filed reports with PayPal, my credit card company, the police in Noblesville, Indiana, and the U.S. Post Office Fraud Inspections Unit. He may never be punished, but he committed a felony, folks, and at least now everyone knows about him, so if he tries anything like this again, there will be a record on file with everyone.
Hopefully the local PD will look into it. Smaller departments tend to be more responsive to stuff like this, bigger cities tend to have more pressing priorities unfortunately.
Also don't forget to leave negative feedback on ebay! That's the best way to warn others.