I heard that they'd watched 'Child's Play 3', a horror movie, and had re-enacted it. But at the age of ten, a normal child knows that torture and murder are wicked. I feel you're right Lizzie, that the film had somehow triggered something within them, and being seriously disturbed by abuse, they had become psychopathic, not seeing or feeling the agony of another. But we'll never really know I suppose. As you've said, James' mother must have suffered the torments of hell and still does, poor soul.