Are you sure that the guy who scammed you wasn't the guy who was dealing with that transaction?
Maybe the scammer and the buyer were the same people and you got scammed by someone you know.
From the reported scams it is clear, in each of his scam, BankerBTC has an accomplice. He does the BTC deal on Skype and his accomplice (or accomplice of accomplice) makes up the Facebook hack story and claims the chargeback from the bank/victim. They both profit from the scam. But, if the victim still has access to the accomplice who claimed the chargeback he possibly can save himself.