Absolutely. One cannot discuss violence in the US without discussing race and the destruction of the nuclear family by our welfare state policies. Mass killings are a small fraction of the gun and other violence in the US.
How about a discussion on the numbers of gun deaths due to illegal drug activity? This drug activity is a measure of our failure in the war on drugs in America. Law enforcement does not want to discuss this failure so they scapegoat guns as a diversion from the real menace.