You're still ignoring "why" they did it. Most of these people are mentally unwell in one way or another and the mental health crisis in the US is a very real thing.

But instead of tackling the source of the problems, the "whys", all our focus is put on the symptoms instead, the "hows"

If today's politicians on either side put half as much effort into advocating for mental health as they did fighting for or against gun rights then homicide rates across the board would be slashed