| I'd suggest not going for revenge, or looking for him to beat up again.  Isn't going to solve a damned thing, and can only escalate the problem.
 Definitely report it to the police and file a statement though.  They probably can't do anything right now, but having your complaint on file can only help if your "friend" decides that he isn't done yet.
 
				__________________You can be young only once, but you can be immature for the rest of your life...
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