Under our present public psychiatry "system", there was nothing the "authorities" could have done.
I have worked with and around crazy dangerous people for 45 years, and I know it's hard to believe that there is no responsible party with both the knowledge and the authority to "do something", but it's true.
“...but it’s true.”
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It’s NOT true. Make comments like Cruz did against the president, or a judge, elected official, cop, or any pig that is more equal than other pigs, and see what happens.
But you’re right about the “system”. And as things stand now, your kids and mine in public schools are way down the line in terms of giving a damn.