It is interesting to note a couple of indisputable facts, with one in particular that is truly astounding.
Since the Federal Assault Weapons Ban expired in September 2004,
murder and overall violent-crime rates have fallen. In 2003, the last full year before the law expired, the U.S. murder rate was 5.7 per 100,000 people, according to the Federal Bureau of Investigation’s Uniform Crime Report. By 2011, the murder rate fell to 4.7 per 100,000 people. One should also bear in mind that just 2.6% of all murders are committed using any type of rifle.
If you want gun control measures that will have any effect on public shootings like Sandy Hook, you have no choice in the matter but to carefully
examine the one thing that all of these shootings have in common, and it's a pretty glaring fact that cannot and should not be ignored: With just a single exception (the attack in Tucson last year) every public shooting in the U.S. in which more than three people have been killed since at least 1950 has occurred in a place
where citizens are not allowed to carry their own firearms.
That's a truly astounding fact, and there's no way to get around it.