I hate to say this, but in Ellensburg it's a good bet that someone stole it and dumped it in the alley. I'd put up at least a found notice on CL, and also let the police know. With luck, in six months it would be yours free and clear, and you would have a clear conscience.
East Hill
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TRY EMPATHY & HAVE LOVE IN YOUR HEART, PERHAPS I'LL SEE YOU ON THE ROAD...