Firearms are a massive problem in the United States. Every day there are firearm deaths, to the point where it barely makes the local news. The other night a man in California shot and killed four people over a fucking washing machine:
Washing Machine Dispute Led to Quadruple Homicide: Officials - NBC News
More locally, in Stockton California a gun owner thought it was okay to shoot up in the air in celebration and.... The bullet came down into a police car and hit a freaking police officer in the leg.
We have the 2nd amendment which says we have the right to own firearms, but a large percent of the population just isn't mature enough to own firearms. If you are dumb enough to shoot and kill four people over an argument over a fucking washing machine you should have never been allowed to own a firearm in the first place.