Well, happy ending to this story:
Last Saturday night i received an e-mail from Osmundo (from this forum) telling me that there was an ebay auction for a KH24 from a Pawn shop in Fort Collins. I looked at the auction and had no doubts that it was the same uni.
So I called Shaun and told him and of course he was excited, he started looking for evidence and he found the cut out piece of the seat post, plus pictures and the receipt.
The pawn shop was closed on Sunday so he managed to get there with the cop today, Monday. After a few runs back and forth to the police station, trying to convince them that they had to hurry and do it today, etc. In the end he only needed to show that the part of the seat post that he had matched the unicycle and the cop and pawn shop employee / owner were satisfied.
The auction for those interested: http://tinyurl.com/3czofm It was a great deal at the time, $305, $30 shipping. Sorry if someone here was bidding . Also a great deal for the pawn shop, that paid $120 for it.
The police has all the information for the thief: ss#, home address, Phone number, driver license number, and I don’t know how much of it is real and how much is fake. I am sure that the pawn owner knew that it was stolen, for sure once he paid only $120 for a brand new (used one week) uni, and for sure after checking online for details about it. He did a pretty good job with the description though.
So big thanks to Osmundo for spotting the auction, just 2 days shy of it being closed, and I guess the moral is that if yours is gone, always keep looking, and go to the pawn shops, and ask around, it might eventually show up.