Just its not possible to find him
Of course it´s possible, but no escrow no work If that is the case, the personally, I don't think Op is serious about getting the owners of the site he is actually looking as this is just a simple waste of time effort. Because if that were not be the case, I am sure a lot of people will go extra mile in other to get that bounty of 5btc. On the otherhand, maybe op has decided to count his losses, learnt his lessons and move on.