One the first point - I would argue that it is compelling. My suggestion you would ruminate is based upon your current stance - which is entrenched.
If the police shot Sheila as suggested and staged her body, why didn't they stage her body in the kitchen? Because they had made the mistake of identifying one dead female for a male etc in the kitchen, it would have been a lot easier to simply stage Sheila in the kitchen job done? If as suggested police moved evidence about i.e. Bullet casing rifles, Sheila from off the bed etc anything else they wanted to cover up would have been easy
The problem for any release for Bamber, has to be the silencer issue, if Sheila's blood is inside the silencer Sheila could not have shot and killed herself and put the silencer back inside the cupboard. So defence was, we have the relatives to blame for falsifying the silencer and people saying the silencer was never used, to now saying the silencer was used and it had Sheila's blood in it and police put the silencer in the cupboard. Bamber himself knows this never happened he was outside and informed at 8.15 am all his family had been found dead, so the police could not have killed and shot Sheila twice and staged her body, what would be the odds of Sheila getting shot down stairs with one rifle wrestling with police and getting shot in the throat, (what was she doing when the police looked through the window when they said one dead female, was she pretending to be dead, then jumped up and wrestled the police?) then the police shoot her in the throat, leave her for dead, she jumps up and runs upstairs lays on the bed, gets shot again with a different rifle and in a short time they decide there and then to say and stage a suicide. It never happened, so if the silencer was used and Sheila's blood was in it, right DOWN to the fifth baffle plate, not just on that ONE baffle plate, possibly DOWN to the sixth and seventh baffle plate, with Sheila's blood inside (like Mike said) possibly a mixture of Nevilles and June's in as well (making it harder for anyone to plant all three in the silencer) Whats the odds of the police accidentally shooting someone twice with two different rifles and covering it up and no one saying Zilch?
Not very well put but I'm no good with comprehension.