I'll just throw my two cents here.
All empirical evidence – as well as plain old common sense – shows that gun control does not prevent violence and only leaves law-abiding citizens defenseless against it, whereas madmen and crooks could still obtain guns (well, most of them already get them illegally).
The Second Amendment clearly states:
The right of the people to keep and bear arms shall not be infringed.
And I'll just leave
this here.