Many of the obviously contributory factors to mass killing are ignored.  Infamy provided by widespread publication of killer's name and platform, violence of movies and tv, first person shooter video games, global disrespect between people.  Serious care for victims would look at all these factors not just the gun issue.  Many here accept the notion that people they don't like can be labelled bad and thus deserving of any bad thing, lifelong labelling of minor crimes so that they cannot work, etc.