I've seen that clip of the Townhall, and, even as a gun owner, I have to admit that he's right on a lot of points.  Unfortunately, even with further restrictions placed on "questionable" people, it would not have prevented this tragedy. I would not be surprised to discover that ISIS instructs its operators to legally purchase firearms for these attacks because it helps them for America to continue to vilify the tool, and not the person.  It is a national tragedy, now we wait to see if we learn from it.