I responded to you on the 11th requesting all the information you had on the seller so we could investigate further and add him to the bad trader list.
Additionally, I asked that you leave him an appropriate trader feedback rating to warn others who may consider dealing with him.
So far, I have yet to receive any further details from you, and I notice you mistakenly left him positive feedback instead of negative, which I will shortly be deleting.
The classifieds area is buyer beware - You have indicated you took several steps to validate this individuals identity which is a great step, however its unfortuantely very easy to forge the id you requested, so that is never going to be 100% fool proof. At the end of the day, the seller was a new member, with no previous trader feedback, selling a very expensive item for far less than its market value - if this on its own didn't ring enough alarm bells for you, I don't know what would.
Have you reported the matter to the Police?