Reading the reports, he made numerous threats to kill a different teacher at the school didn't he? was seen with a knife by other kids on the day, and after the attack he sat down and laughed and said he was "fine and dandy"
He's got a life sentence, but must serve a minimum of 20 years, so potentially he could be just 36 when he gets released
A minimum 20 year sentence is actually quite strong based on other recent setences, playing devils advocate what is a fair amount of jail time? How can you rehabilitate someone with a 40 year sentence?