Bicycle detail

I left my bicycle unlocked in the yard of my residence at 10pm on Friday night December 8. At 10am the following morning (Saturday December 9), I discovered that my bicycle was not where I left it. I did not relocate my bicycle during a quick search of the surrounding area. The bicycle is an old school, 12-speed, red, road bike, made by Nishiki. It has light-turquoise handlebar tap, patched in places with black electrical tape, and white athletic tape. The break levers are grey. It had a kickstand, rear splash-guard, and u-lock (hanging on the handlebar) with it at the time of theft. Both tubes have schrader valves, and the rear tire is a flat-protection tire, while the front is just a flat.