Another ill-conceived idiotic idea by hoplophobes trying to force their extreme views upon everyone. The premise of this ideologue is criminals, who by definition regularly break the law, will suddenly obey the law because a new one was just created.
Virginia Tech implemented a gun-free zone on their grounds after a 2005 gun incident. In this incident, a student who was legally carrying a pistol stopped an armed assailant by confronting him. It is a tragic irony that the "leaders" of that college then took away the one thing that could of prevented the 2007 tragedy.