Stolen iphone 4, what to do?

I was drinking last night hanging around with messed up people. Story short my cell phone battery died and i ended losing it. Tried calling the phone and the it goes straight to voicemail. The thing is the person i think took it won't admit to it so i went to his house and took his expensive bike and some stuff… What should i do now

Turn yourself into the police. You're a drunken thief.

Talk to the police.