They tried interventions, according to PROMISE guidelines.
'Interventions'?
While active duty in the military I sat down beside a new young airman just before a meeting, and I noticed how incredibly talented he was at drawing - his art was almost like photographs. I was astonished while watching him draw....then I noticed what he was drawing. I struck up a conversation, complimented his drawing, and then asked him if I could take a look at his work. I thumbed through his pad - all of his art work was incredible - all of his art work was extremely violent, messed up, and depicted graphic violence. I immediately talked to my commander, the JAG, and a few others after the meeting.
Within 2 hours after the meeting he was taken into custody, given a psych eval, his quarters and car were legally searched, and weapons and evidence of his intent to commit violence was found. Within 5 hours he was under custody, on suicide watch, and in a cell.
It does not take 40+ visits, people telling you the guy is a freak capable of / planning violence, or 'interventions' to take action and possibly save lives....IMO / experience.