I'm no pacifist and i've shot guns for sports, but still think that allowing guns and ammo to flow freely in any society is a recipe for disaster.
Guns are hardly the most deadly means of killing your fellow men in large numbers from seized aircrafts using box cutters killing thousands, to a farm boy mixing a truckload of home make explosives killing hundreds, to a drunk who used a few gallons of gasoline to wiped out almost a hundred people at a NYC after hour club that had been proven over and over and over again.
The means is beside the points, the desire to kill
in many cases motivated by mental disorders such as in the case of the shooter that is the subject of this thread happen to be at least in my opinion.
If you wish to end the thousands of gun deaths that is occurring in a large numbers of our cities every year my suggestion is to end the funding of the drug gangs by ending the so call war on drug and move the drug problem from the criminal justice system to the public heath system where it belong.