I've been reading this discussion off and on since the beginning, but haven't been able to get a fix on what might have happened. I suppose there are four possibilities:
- he met his demise at home
- he went out in the middle of the night to stay with a friend
- he sneaked out and a random stranger pegged him as a vulnerable child
- suicide.
Although he and his mother had another common argument, I don't think anything bad happened at home. It was their habit to argue. That leaves three possibilities:
- he stayed with the wrong friend
- he was abducted
- suicide.
Has anyone come forward as the person who took him in when he needed refuge? If not, that sounds like a grooming situation. If it's known where he stayed while away from home, and that has been cleared, that leaves two possibilities:
What were his favourite places? That might give a clue to suicide locations. Abduction is something else altogether. Has anything come from reviewing CCTV in the area?