Well, it all started with him being from our world (talking about flags and all), sowe do know he's possessing the body of pigsy's original first brother, who seems to be from the same timeline from what he said the first time he got struck by lightning.
@bushwhacker2k Maybe it was a flashforward? The chronology was messed up during the few last chapters. Or I'm just a retard that couldn't understand what was happening.