You have a very good point there @richard. What happens in the home really impacts on all of us. Perhaps in America it's beyond the point of gun confiscation. I come from a country(New Zealand) with very tight gun laws and fire arm restrictions, a person is shot in my city less than 5 a year.
There seems to be an increase in diagnosed Mental illness and depression around the world which is something very troubling and I believe this is a big factor in people's break downs and taking it out on others.