If you know his address call his local police dept,
and tell them he scammed you, or the FBI they now have a online
internet fraud dept. and also mail fraud. Send him a certified letter as well as a email if he does not comply within 3-4 days call the police in his local area, if no satisfaction his state
FBI internet fraud over $2k is a federal offense.
make the demand and tell him a deadline date send him also a link to theFBI
online fraud dept. best of luck.