Scum...end of...
as stated I think its unlikely that the person that took it even knows what it is..
He or someone he sells it to will eventually try and hock it. Keep watching the Pawn Shops. Better yet, if you have a picture of it see if the Pawn-shops would be interested in hanging up a flyer asking if anyone they know has tried to sell a stolen Kemper lately. Once they know its hot, "no one" will buy it hehehehehehehehe....