Car I Bought Was Stolen Please Help

Hey guys, Wow this is so hard for me to say but I need your help. Last Friday I bought a truck that was listed at $15,000 from a private party dealer. The previous week I had sold my hummer to come up with the cash to buy this truck plus some extra cash out of pocket from me. I got to the title bureau to transfer the title 4 days after I purchased it only to find out that the truck had been stolen off of a lot in Indiana. By this time the suspect was long gone with my $15,000 and I'm also left with no car. All I want is to get my money back. If there's anything you can do, please anything helps. Thank you so much.