Look many of these shooters had/have mental problems.  How do we handle that?  In this case the Air Force screwed up by NOT putting the information out there so this shooter passed the background check. The gun stores need this information.  Than again anyone who wants a gun will find a gun one way or another and that is a fact.  How about requiring classes before the gun is sold or a mental test?  Could these help, maybe but than the shops would have to have someone who could pickup on mental illness.  The knee jerk reaction will get us nowhere.  It is not the gun that pulls the trigger it is a person, a sick one at that.  Just my opinion.