I don't think so, but that isn't definitive. Just because you probably won't have to use a gun doesn't mean you should not be allowed to have one.
The UK is a good example, they banned firearms as high up as the police. Did crime rates go down? No. Did gun related crime go down? No. There is no correlation between gun ownership and gun related crime.
You're right that gun related crime is sad, however we live in a world where, one way or another, that is going to happen. You can't legislate yourself out of it any more than you can legislate yourself out of people drinking alcohol or smoking cigarettes.