Jumping off, what do we make of this (from GJ's DT article)?
His wife ran out with one of the neighbours, asking him, ‘Is William with you?’
Was it AMS already, or a different neighbour? Or is MFC misremembering because AMS was there a bit later on when FFC made the emergency services call?
Another thing that reads strangely is that when GJ suggested the grandmother had accidentally hurt William, MFC answers that she couldn't hurt a fly. It's a false note. Why represent her as an extreme pacifist who'd always return good for evil . . . when that wasn't her character, apparently, and when it wasn't any sort of answer to the question about accidental harm? Anyone can have an accident.