Not to be insensitive but the boy is in a better place, and put out of his misery. I've worked with kids and adults alike with disorders and for some of them, living is hell, and passing would seem to be a better alternative. It's like when someone tells you that a person with stage 5 dementia has passed, you feel relieved for them.
I worked with this one kid 18/19 (and still do on occasion) who is autistic and has gone after me with his fist leading several times. He's at least 240 pounds, and you wouldn't automatically think ''teen boy'' if you saw him.Thankfully he's uncoordinated and doesn't move as fast as me, but there have been a few close calls where another has had to intervene on my behalf. Sometimes there's two diagnosis that the psychs don't pick up on b/c the primary diagnosis gets the blame for everything!