Exactly. The ARE people that remember him from Columbia. The whole notion that he didn't even go there is nuts. Here are more details from a Columbia wiki. His roommate from Occidental and Columbia has written an article in a Columbia alumni magazine. The whole idea that he could publicly claim to have gone to Columbia if he did not and then run for president and the university never denies his claim is also crazy.
Agreed. The link supplies the missing details.
I still believe there is more to the story. He may have been quite radicalized by the Columbia environment. The destructive behavior that we see from him today could have been predicted had we known more of his Columbia years.