But while people are clamouring for tightened gun control etc. why aren’t they asking about a ‘psycho registry’? This guy had a history of mental illness that said he could be a danger to himself and others. I don’t think there is an expiry date on that kind of danger.
Why isn’t there a central registry for wackos where gun dealers etc have immediate access to their mental health history?

Not that it would help. A home made bomb strapped to his waist would have been at least as effective as a gun.
Some people are just going to be violent sods regardless of attempts at intervention and prevention.

Our therapy and anti-depressant culture NEEDS to be scrutinized in the aftermath of these school shootings. Loneliness and depression are common enough afflictions of youth, but today they are spoken of as something to whine about and escape from rather than grow through, struggling to become better human beings; a chance to examine life anew and reach beyond ourselves in service to others.

The autonomous individual, free to create his own reality and be tolerated by all, is totally destructive, often unable to live even with himself. People need standards to live up to, a certain formality to civilized life, to challenge them beyond selfish egoism, to set a bar that they can try to reach.