Score sorry to hear that....yea i agree with people above it only possible to track down ur laptop if u have tracking device installed in your computer. the other thing depend on what brand coz there are few brand in US whose manufacture actually have access to the information of your Laptop through serial no. no matter where ever it is( online). so there might be way to get to that person through his data. offcourse this is not easy u have to go through all hassle.

Good Luck