Point about the ethics well taken. But murder is motive and opportunity. Guns increase the opportunity. I know I would kill someone because a couple of times I was stopped from doing so. Two knees on the other guy's chest, hand s on throat and him turning blue. If I had had a gun they would have been dead before my friend pulled me off.Neither occaision had much to do with ethics. It was a hard, unexpected. blow to my face and me coming up swinging