Gun Control

I just don't understand how every time there is an incident where a gun is involved, all talk turns to gun control! Gun control will not control people, if a person has a mental disorder and uses a gun, it's not the gun with the problem! Illegal guns can not be controlled, how does our government think that controlling what guns I can have as a typical citizen will stop senseless killings? If someone can explain this to me, I'd be happy to listen.