I understand the girl spoke to school officials about the perps relentless quests for affection.
The massacres are symptomatic of failed public education.
Why did the perp choose to kill the girl at school?
Back in Junior High my son was getting bullied. We told him to tell the teacher. The teacher called in the mom and dad. The dad told her “His mom deals with that crap, I’m busy.” (Some big-wig executive). The teacher told the dad that if he wasn’t at the meeting the boy would be suspended automatically. Dad made it.
The teacher spent a lot of time with the bully and the family, making them get family therapy, etc. (The bully had personal and family issues).
He and my son later became good friends.