A complete ban on handguns wouldn’t have worked because he would have either bought them illegally or just used different weapons.
And he also started out by stabbing three men to death - http://www.keyt.com/news/Rampage-in-college-town-began-with-stabbings/26153616
Good point...the guns are out there, and they are not going away. I guess my point was that he would have then had to break the law...but all this other crap would have permitted him to legally buy the guns and do what he did.