If no Back-spatter at time of fatal shot under chin - no need for anyone to remove silencer from barrel of gun and take it downstairs to conceal it in the gun cupboard, as alleged by Prosecution case
(1) No Backspatter at time of fatal shot under chin, path and trajectory of fatal bullet, up through base and roof off victims mouth and deposited in her brain
(2) No need for anyone to remove silencer and take it downstairs to hide it in the gun cupboard, after Sheila was killed
(3) No silencer photographed on weapon allegedly found on body of Sheila...
I strongly doubt having just wiped out 5 people, in a possibly dimly lit situation COULD check the inside of the silencer for blood.
I do think they might wipe it, or check it for obvious signs of blood, but anything more? no.
Besides, why even leave it at the house in the first place?
If Sheila committed suicide, why put the silencer away? I can understand taking it off, but not putting it away.
If Jeremy murdered her, then the same, why put the silence back and not take it with him? (it's a gamble to take it with him, but arguably a greater one not to).
Yes. Jeremy couldn't possibly have known that the police would not look for all articles associated with guns in the house, and he couldn't have known that they would miss the silencer. In fact, you'd expect them to have taken all the firearms and associated articles away really.
There was allegedly blood on the outside of the silencer, so the killer didn't even bother to wipe it - that's quite careless isn't it?
Sheila could have taken the silencer off and put it back in the cupboard. She could have put the gun back in there too and taken it out again later to shoot herself minus the silencer. I know that sounds a bit far fetched, but so does the idea that Jeremy would just put the silencer back in the cupboard without even checking to see if there was blood on it.
I wonder if they examined the box the silencer was found in. You'd think there would be some blood in it which had transferred from the outside of the silencer.
On this matter, we think alike.
Trouble is this -
If JB did it, his thought processes aren't quite typical of most. He killed 5. Enough said. So who's to say what level of arrogance, carelessness, adrenalin rushed confusion he was in?
If he didn't do it, then the putting the silencer back in the cupboard is equally 'bonkers'.
Either way, killing 4 then yourself is quite extreme, and killing 5 every bit as much. So whoever did it was not thinking rightly! Mapping that onto OUR minds is possibly our downfall.
Here's what I think though (on the assumption JB planned it, as best he could).
1) It's going to look like a robber, or suicide. Robbery is messy and they need to find the killer, so suicide works best (helpful of Sheila to have instability issues too)
2) Do I need to use a moderator? Might be best if I do, so as to make sure I'm not heard by distant farm hands etc.
3) Either I don't yet know that sheila will stuggle, or find impossible to shoot herself with the moderator fitted, or I do know about that problem, and decide the last shot will require it to be removed - they won't know there was a moderator used, because they;ll see the suicide gun, and that's that.
4) If I take the silencer with me, and for whatever reason I get caught with it - I'm done for. If I leave it at the house - it's just one of lots of gun stuff, and they probably won't even look. I might even clean it if I have to then put it back where it belongs
There is actually every chance he didn't think through every last detail (like backspatter) and was possibly too arrogant to think they might work out it was murder. Who knows?
If he hadn't actually known she couldn't kill herself easily with the moderator fitted, it MIGHT have been a last minute issue, and lucky he spotted the problem. So he removes it, shoots her without it, then has the silencer in his hand.... what does he do? he was GOING to leave it on the gun, but he can't do that now... panic panic ... put it back in the drawer.
Feasible?