re: Crackpot ASOIAF Theories SPOILERS

Well that's a big possible hint. the book hasn't said much about him but the show may be hinting at it now. I don't remember what happened to him in the book, possibly was killed during the revolt, but there was a big theory he was married to a white walker in a peace pact between men and white walkers. He could have turned into one somehow or the show could be just making up the white walker king character entirely.