Okay, let's stop fighting. Everyone has they own opinions, besides, even if America never decides to add a little gun control (NOT REMOVING THEM, JUST MAKING THEM HARDER TO GET), It doesn't affect me, I don't live in America.
If the person had no gun in the first place, it would be a lot harder to kill people. Yes, getting rid of guns wouldn't end all crime, but it would save a lot of people's lives. You think if the man who killed all of the people in Vegas had a knife he would've been able to kill so many people in so little time and from so far away? If he had a knife he wouldn't have been able to kill anyone from that far away. And tell me again who you should keep guns?