Go to your local recycling centers and look at the rims they have taken so far, report this to the managers. Call the police and file a report,this way if you find any or all of the rims, you have a case number, they will come out and recover your rims, get the name of the perp who sold them, go and arrest him\her. Then hopefully there were others involved and that one squeals on the others. They will be arrested for grand theft ( if you can show the rims being valued at over $500), this is a felony.
Don't set your self up to be a target that will cost you everything either, booby-trapping your yard\shed or home will land you in more trouble than any thief would ever receive. Put up motion detector lights, motion sensor alarms or a fence or at best all the above. If you must have something of value left out, buy some heavy chain from home Depot or Lowes, and get a stainless Steel Circular lock, chain them up to a tree or something. And if ya go out at night because ya heard something, don't shoot first and ask questions later, make sure you are within your rights to pull that trigger. You must be in fear of your life, they have a gun, or an object that may have looked like a gun and started to point it at you. If you shoot, shoot to stop and not to kill (this is very important to say when the police arrive).
And as a side note, don't leave out rim shops, pawn shops and swap meets. If you think you know who did it, checkout any garage sales in his area and his friends vehicles.
-=Reno=-