Thanks to all who were concerned and responded.
Here's an update, and hope it is not final.
If someone finds oneself in similar situation, contact your local police right away and file a report. File a complaint with USPS Postal Inspectors Service here:
https://postalinspectors.uspis.gov/c...complaint.aspx
Also, file a complaint with FBI here:
http://www.ic3.gov/
Also, make sure to contact eBay. They do take these matters very seriously. They stepped in fast and removed the user. Kudos to eBay!