In every country where the populace has the right to bear arms guns are routinely used to kill people. That's what they do. If someone wants to own a gun, they want to fire it. The question then arises, what will they fire it at? A target? A rabbit? The next door neighbour?
The only way to stop a gun being fired is to not make it or not allow people to own them. And no matter what laws we pass , we cant beat the idea that you cant shoot someone with an empty hand.