At this point we dont know the timeline of what the parents knew or didnt know about their son. we do know the school, with trained professional educators, on staff child psychologists and likely a psychiatrist and security did not think the kid was an immediate or deqdly threat, since they did not isolate him, secure him, searched his lockers or belongings..........and they did not bring in the police that day or
before the meeting with the parents.....
So if all those highly trained professionals were not concerned, what were the parents supposed to think?