That's so sad,this is the thing though because our first instinct is to protect our children no matter what,and even if you know in your heart they are wired wrong you can't just switch it off.I feel for your Nan.
This is also why I can't totally condemn JC,I can't imagine how hard it was to turn her son in(because that is what she did even if she tries to spin it another way)and to admit to the world what he is,it doesn't excuse her and her husband(he is to blame for lax parenting too)for turning a blind eye and hoping things would get better,but she deserves recognition for doing the right thing in the end.It was too late for poor Alesha,but at least she stopped him from being able to hurt anyone else in the end.