Anonymous wrote:
I think you have the theory wrong. It isn't that brother accidentally killed her. He intended to hurt her, and unintentionally killed her. Not the same as an accident as all.
That makes no sense because it's basically the same thing. A 9 year old who hits his sister with a flashlight one time and injures her is not going to jail. I doubt he would have meant to give her a closed head injury either. In reality even with that theory he didn't kill her at all, unless he was the one who strangled her. so again, mom happens onto an accidental (what she would assume - I don't think you'd jump to one of your kids beating the other that badly) injury, and instead of deciding to call 911 she decided to stage a brutal murder (in the process, committing actual murder).
It seems way more logical that even if you believe an intruder was impossible that the parents did it intentionally. That or they know who (another adult) did it so it wasn't an intruder per se.