There's something really perverse about the criminalization of self-defense. It creates a deep sense of helplessness and despair in both individuals and communities. Unfortunately, it is just another one of the absurdities that is now taken for granted as 'normal' in this culture. It has gone on so long that there are significant numbers of people who instinctively view people like the shooter in this case as malevolent and transgressive simply for meeting violence with violence. I suspect that this emotional reaction is a way of overcoming their own sense of humiliation and emasculation by identifying their morality with that of the legal bureaucracy. That way it 'feels' like it's a choice they've arrived at through moral reasoning, rather than a condition of weakness imposed upon them from without.