Oh please, what kind of people are you going to take guns away from to stop these kinds of crimes from being committed?
Look at some of these statistics, and they have citations, all the information is in one place so people like you can understand it.
http://www.justfacts.com/guncontrol.asp#[36] In florida, when the right-to-carry law took effect the murder rate went down substantially. The same thing happened with texas. In chicago when the handgun ban went into effect, the murders committed with handguns went up. I'm giving you facts, you can try to dispute them if you like but I don't think you'll be able to do it.