I just want to chime in here and point out something, partly in response to a point I saw earlier about "most gun crime being committed with handguns:"
I live in the UK. In England, members of the public may own certain types of firearms - sporting rifles and shotguns, for example - but only under heavy regulation. Members of the public used to be allowed handguns and easily concealable weapons....until 1996, when Thomas Hamilton committed the UK's first mass school shooting at Dunblane School, killing 16 children and one teacher, before committing suicide. The public reaction? Mass outrage, and a lot of public-created petitions to tighten gun laws to try and prevent it from happening again. Following the massive public push and the media coverage, a pair of Gun Law Reform Acts were passed by Parliament that effectively made private ownership of handguns in the UK illegal. Firearms can still be owned under regulation and if you have the correct licence, but almost nobody has a "real" handgun any more.
Do you want to know the result of that law?
The Dunblane School Massacre is both the first and - to date - only school shooting in the UK, at least to my knowledge.
Do you know what the gap between that and the next Gun Massacre was? Sure, gun crime happened in isolated cases, but the next mass shooting was in 2010; The Cumbria Shootings. That's a 14 year gap between Gun Massacres, whereas the US has one every few months. Does nobody see a problem there?
The UK, which has made private handgun ownership illegal - but NOT sporting rifles and shotguns, which are used for private sports, pest control, gun shows, etc etc, which are usually the uses cited by anti-gun-controllers - has a gun homicide rate of 2.4%. It has one of the lowest rates of gun crime worldwide, and has only 0.5 - 1 death on average per 100,000 that was as a result of gun crime. Most of our police force aren't armed with guns, which also means that we have one of the lowest rates of "Suicide By Cop" and Police Shootings in the world as well. It happens, but much, much less often and in more extreme circumstances which are dragged through the news for months. Further, less police are killed as well; from 2000 - 2011, only THREE police officers were killed by firearms in the whole of the UK. Even allowing for the difference in size of the population of the UK and the USA, that's a HUGE difference. Further, we have a specific armed response unit that is routinely trained and drilled in proper gun use and gun safety, which results in far less cases of "shoot first, ask questions later" type responses.
And before anybody says "Oh, but they can just get the guns illegally," it's estimate that only - on average - 0.1 people per 100,000 are killed by illegal firearms per year (though those stats are from 2011 and 2012, I doubt they've changed overly much in the last few years).
Let me put it this way:
The UK has among the strictest gun laws in the world, and has one of the lowest gun crime rates in the world.
Now, I know how the Americans love their guns and I doubt any politician is gonna have the stones to say "No, you obviously can't be trusted with concealed weapons so you're not allowed them any more," but anybody who says that tighter gun laws won't reduce gun crime is demonstrably wrong.
And just to be clear; despite me arguing about it earlier, I don't care what your Constitution says. It's a document, written by men. Documents written by men can be wrong, and they can be flawed and they can be - as in this case - outdated, since back when it was written, guns were a lot less practical and a lot more cumbersome and inaccurate than they are today.
Can anybody actually give me a reason besides "It's in the constitution! It's my right!" to not tighten gun laws to try and curb your frankly absurd levels of gun crime? Is anybody really arguing that America shouldn't be stricter on gun ownership when it's pretty obvious that it's the availability of the things that's causing all these issues?
Two or three more numbers:
In 2013, there were 30 gun deaths in the UK.
Per year in America at that time, it was - on average - 32,000 a year.
In 2013, the UK population was about 64.1 million, and the US population was about 316.5 million.
0.00005% of the UK populace per year will die from gun violence.
0.01% of the American populace will die from gun violence.
Those statistics don't look that bad when made into a percentage (just remember, 32,000 is still a LOT of people that die from ONE SINGLE type of crime in only a year), but I worked them out to illustrate a point; even when allowing for population size difference, the USA gun death rate is still MASSIVELY higher than the UK's by 20,000% when talking about percentage difference alone.
I mean, come on. That's more than just a coincidence.
American Gun Law needs to be tighter, or this sorta shit will keep happening to you. It's just a fact.