Ron Walker was an FBI man who was there at the house on 12/26/96. He said this:
That "decapitated" one got me.
"Well, as much as it pains me to say it, yes, I've seen parents who have decapitated their children, I've seen cases where parents have drowned their children in bathtubs, I've seen cases where parents have strangled their children, have placed them in paper bags and smothered them, have strapped them in car seats and driven them into a body of water, any way that you can think of that a person can kill another person, almost all those ways are also ways that parents can kill their children."
That "decapitated" one got me.