Sorry to hear it. One thing I usually do when selling an item on craigslist, mercadolibre, etc. is to google their email address, see if its linked to a facebook profile, etc. Usually their email will have some type of digital footprint on the internet if its legit.
You could also look through your email correspondence with them and see if it contains the ip address. If it does you could try to take that info to the police. Only they have the legal power to find someone's address and name that is connected to the ip address. The criminal could have also done sent the emails from an internet cafe though..
You could also look through your email correspondence with them and see if it contains the ip address. If it does you could try to take that info to the police. Only they have the legal power to find someone's address and name that is connected to the ip address. The criminal could have also done sent the emails from an internet cafe though..