You are exactly what I was thinking of. I know in our local urban school district, the bureaucracy is so heavy, and no one takes responsibility for anything. Recently a girl was stabbed on a school bus. Everyone knew the perps were trouble, and in spite of the girl's previous complaints - nothing happened. Everyone is atomized, there's a million rules and regulations, there's zero community, zero concern and zero responsibility.
Things can be done but those in the trenches need to be able to band together and get the ugly truth of Parapros getting hurt out into the public eye.
The time for protecting the dangerous student has come to an end. They need professional help not hidden away and passed along.