Depends. Maybe he'll flee to somewhere way North and leave society behind. OTOH, having done his thing in high
school, maybe he'll pull a Marc Lepine.
This is the first time that his name and appearance is known to the public, because he was a minor when he committed the crime. The legal system is so careful about protecting his rights. There are no rights for the victims and their families that people like these be kept away from society?
From what I've read about him, this guy has had major psychological problems. That's why the police so concerned. They can't say that he won't become violent - again.