The fact that the US has a much higher murder rate when compared to other developed countries. Excluding gun violence, we see very high rates of murder per capita and that does not come from just guns. Include gun violence and its amazing the difference.
Dealing with it is amazingly complex. I can only speculate as to what to do, but it is clear that we have issues beyond gun violence. Gun violence is an issue that should be addressed, but if anyone thinks that guns are the only issue, then they are wrong. Now, some of the things to be done would be as I have said before is to get a national mental health system in place. We have seen rates of gun ownership per household go down, yet mass shootings go up. When you look at what these mass shooters have in common you can start to see some of the issues. Mental heath is one, but its more than that. We see males vastly overrepresented.