Do you have a picture? Where are you located? We can keep an eye out if you give us some information to work with. How about a description of the bike?
Fill out a police report. Even if you don't think you'll see the bike again, just fill it out. If the asshat gets caught, you'll at least have a fighting chance of getting your bike back. If you have renters insurance or homeowners insurance, it may be covered.
So sorry to hear about your loss. This sucks.
Koffee