I would say he is most likely the original owner however whether he was hacked or sold it himself is the issue and really can't be proved otherwise. It odd that he is coming in to claim it after some time. I'm skeptical. I don't think he is telling the full story of how he lost the control.
Yeah thats what am still thinking.It might be also that he had sold the account to ActSeller and now wants to claim it back saying that he was hacked earlier.Thats why am really waiting for ActSeller to come in this thread and tell us more about it that how he got the account.