You've said something twice now beating him doesn't work. Take it from me, I did the same thing with my child, not knowing what else to do. From the little you described, it sounds like the problems were similiar. My child hits back now and who showed him that was the way to deal with it - good old mom. I may be 180 out, I hope I am but get help. Call social services here in the county - they can help - they don't remove the child, they listen, they send in mediators to talk to everyone involved. They observe, they ask questions, they make recommendations. They're actually pretty good and they have funding they can provide if you qualify. I'll see if I can dig up the number tonight if you'd like.