You seem to have gotten a lot of good suggestions. It sounds like the easiest is to get the police to subpoena the phone company or the email provider. It seems

You seem to have gotten a lot of good suggestions. It sounds like the easiest is to get the police to subpoena the phone company or the email provider. It seems like the police are working on that. If they won't do that, do it yourself. The easy way is to just do a reverse phone number look up. I found a site that will do single lookup for around $15. It may not be accurate, but that is relatively inexpensive. But I don't see why the police would not have already done this if possible. Address lookup: http://www.numberinvestigator.com/ http://www.numberinvestigator.com/ Otherwise, you will probably need a court order, but I don't believe that should be too hard to get.It sounds like the amount might be small enough to be handled by small claims court. So just file a case yourself. I don't think he actually needs to get served, you just have to make a reasonable effort. Since you can't get his address, I'd hire a process server, or just try to contact him through all means possible.. If the judge won't accept your efforts to serve him, I think you could reasonably subpoena the phone company for his address. If he doesn't show up, you will easily win, and I am sure you can obtain his address through a court order for collection purposes. Of course I am not a lawyer, so I might be totally wrong in what I suggest. How to file a case in small claims:http://consumerist.com/consumer/small-claims-court/how-to-take-your-case-to-small-claims-court-246502.php http://consumerist.com/consumer/small-claims-court/how-to-ta...