Gun control won't solve anything. When a POS murderer wants to get a gun it's easier than getting milk at the corner store in many places. More people should have guns. If they did they could stop pukes like this who think it's ok to kill innocent people.
Describe how that works for me, 'Sandy', ... Perp Kid takes a gun into class, nothing odd about that in the situation you describe, where everyone carries. Perp Kid then squeezes off two at Victim Kid, fatally wounding him. What is everone else with a gun going to do? Put their guns into reverse and suck the bullets out of Victim Kid? Guns do not stop people from getting shot, and to think so is ludicrous.
Check the stats. In the areas where they have the highest rates of guns (concealed, with permits) they have the lowest gun crime rates.
You assume causality. I would venture places with low crime then allow concealed carry. Show me stats where concealed carry has a proven causal effect on lowering crime.
And when some POS starts shooting like the POS today in IL, someone with a concealed gun could have taken him out after the first shot. 16 other people would have been spared.
That's BS 'Sandy', you see some person pull a gun, but what if they are pulling in response to someone else drawing? Before you know it, it would be like the shoot out at the OK Corral. Maybe you forget stories such as these, where there are blue on blue incidents;
http://www.msnbc.msn.com/id/10750040/
You think more guns will lead to fewer tragedies, but that will be offset by prevention? Based on current statistics, where the USA has a higher homicide rate than other developed countries with gun control, it isn't looking likely, is it?
Look at the facts ( I know you find them inconvenient ) UK, strict laws wrt guns = low gun crime, Australia, the same, Japan, the same, USA, lax laws, prevalent firearms = lots of gun related deaths. Surely you can see this. Oh no, you can't, you're narrow minded.