Why is he not in jail? He should be arrested every time he sets foot on Columbia property. Is he illegal, here under visa. Deport him.
Columbia University won't press charges because discovery will show everything he's doing, he was taught at Columbia.
Columbia University was quite willing to teach Marxist anti-white and anti-American hate for more than a century. They have no complaint about vitriol being directed in their direction from the same students they taught it to.
This guy looks like a real gaywad Lothario...