There are racial and demographic components to that question that are not politically correct to answer. If one were inclined to dig into the FBI's statistics

There are racial and demographic components to that question that are not politically correct to answer. If one were inclined to dig into the FBI's statistics they would find a large portion are of a certain minority who are killing other members of that same group. These groups are also in low income areas with little prospects for good jobs. They also, ironically, seem to inhabit areas with very strict gun laws. Often when I see this topic come up I think the violence is not caused by weapons but by an environment that doesn't have much opportunity for them.