He also threatened to kill his mother, and the Police were called.
At least one person called a FBI tip line about him, and at least one more person called a local Police hotline about him.
He also had psychological exams and counseling at least six times at school.
Last, but not least - he legally bought a semi-automatic rifle, because none of those prior incidents appeared on his record.
Have to wonder what school administrators knew of the bullying that the Florida shooter endured. The girl who made the rounds with Hogg was allegedly one of those who bullied the shooter in school.