stolen 1992 Specialized Stumpjumper FS

Saturday night left the bike cable locked to itself in the back yard, which cannot be viewed unless you intentionally enter the private area. Tuesday morning, I go to ride it and it's missing, nothing was clipped, so I assume the bike was taken with the lock. The bike was silver with purple lettering. I had no ideas about serial numbers until now. It has a silver rack on the back, with a grey seat, and a small blue cross sharpied on the top of the frame. (Below is a picture of what the frame looks like)