No, there really is no way to get it back, unless you call Blizzard and get the fortune of talking to an employee who knows very little about Blizzard policy. I bet the original owner recovered his password and that the email will soon be changed (when he gets a chance to call Blizzard). In the future, if you scam an account, get the Email and Last name so that you can transfer the account to a new one using wow lawyers method.