My roommate stole from me and the authorities aren't doing much help.

A week ago I accepted a new roommate into my apartment and though we got along pretty fine, I noticed a few weird behaviors from him. Well, my suspicions about him were eventually confirmed because when I got home last night I found about 3,000 of my cash missing, as well as my brand new PlayStation with a few games. When I saw that all his stuff was gone from his room, I assumed the worst. The police aren’t really doing anything about my case, so I did my own research and found out that he is going to an international brides dating event. My question is how do I join these things and is there any way for me to find out which one he’s planning on joining? Any response would be much appreciated.