My bike is stolen

I went to the police department today to see if my car was there. I gave my car to one of the new students, and he didn't take care of it. He left it on campus without its lock, and somebody might stolen it. I talked to my roommate, and he said there is a chance that the university police has collected it.

I spent more than an hour there, and the policeman came back empty-handed. He said the somebody might have stolen my bike.