Your problem isn't guns. Your problem is a terrible and growing gulf of economic disparity between the rich and the poor, massive social injustice, a decaying infrastructure, loss of traditional jobs, the busting of unions, privatization of public institutions, high unemployment, gross lack of social services, unpayable public debt, erosion of civil rights, and a corrupt government that has sold itself out to private corporate interests and banks and abdicated all social responsibility in the process.

Your problem is endemic corporate fascism run by banks and billionaires. Fascists like guns...but they don't particularly like having the guns in the hands of the ordinary public...rather, they would prefer that all firepower be in the hands of the police, the army, the private mercenaries (such as Blackwater), and the various security services (governmental and private contractors).

The various random acts of violence that occur on the part of ordinary citizens with guns will only strengthen the draconian powers of corporate fascism in a crackdown response that potentially affects everyone...therefore those incidents are actually quite convenient for promoting the general fascist program that is already underway.

When people get really scared, they tend to panic and call for "security"...and they'll let their regular civil rights be taken away with hardly a whisper of protest. That's what's been happening bit by bit ever since 911. 911 was the USA's equivalent of the Reichstag fire. It has similarly enabled a fascist takeover...one that still clothes itself in the fig leaf of a supposed 2-party "democracy".