I have dismissed an outsider being responsible because it is the ubiquitous Jeremy who informs us that Ralph(Nevill) tells us that "Sheila has gone berserk with a gun",therefore limiting in his scenario the suspects to two. This was always a weakness in Jeremy's testimony as he wanted to set himself up with the Police as his alibi. I have deliberated the events of that morning,not what happened in September,and it's quite evident to me that Jeremy entered the property through one of the downstairs windows and exited through another,as he had told Julie he knew how and as he did subsequently to the murders when he thought it had all died down. I also believe that there was no telephone call at all from Ralph(Nevill);there would have to be a contrived scenario for it to have happened,irrespective of the Police at Witham and at Chelmsford Police stations denying they ever spoke to Nevill personally.