Well I had a bit of a discussion with an insider to the case the other day and they put forward another theory on who helped. It has been said that a certain ex MP and Doctor could have been involved after the fact. Whether GBC did kill her accidentally and then called this person for "help". Then later on pretended to hear screams to give himself an alibi. Mmmmm food for though. Hence why Mum, Dad and Livvie have never been charged yet.