I know exactly how you felt when it happened. I lost a Toyota 4x4 truck to some bastards that basically did the same thing to it, as they did to your Supra. It's motor was never the same again after that. Ended up selling it for a big loss a couple of months later. On the bright side, you do have it back, some people never see or hear another thing about their vehicle after it's jacked. Did you hear about that recent case here in Washington, where the car owner caught the thief in the act and choked the living shit out of him? Literally!, he ended up dying! I say, good fucking riddance! Those bastards don't have the right to even breathe our air! They just closed the books on that case too,... no charges filed against the owner/victim. Let that be a warning to anyone who stoops to the depth of lowness, stealing someones pride and joy, that is a part of ther very being! I would have no problem busting a MF'ers head open, if I caught them. Mind you, I'm not advocating murder, just some good old fashion justice! If I had the time, I would help you set a trap using my car, and my AR-15 for the citizens arrest, it would be something to see those assholes crap all over themselves staring at the .223 hole at the end of a 4" flash suppressor! Good luck man, I hope you find out who it was.
May justice be served here on earth, before the judgement.