If I thought that gun laws would stop the deluge of mass killings I would support them.  But there are many ways to kill.  We see the ISIS folks using trucks to mow down people.  I won't even mention the other relatively easy means of killing which non-killers may not think of, but those who want to kill will.  Some serious thinking about this problem needs to happen.  Why do they do it?  I think publicity is a major factor, very major factor.  A first and very simple possible approach to damping the killing is simply to make the killer's names and background top secret so that it may not be published.  Deprived of the infamy they likely desire, we may see a dramatic decline.