Certainly not with a gunshot wound. This has effectively been ruled out by Dr Vanezis, the pathologist.
Could Sheila have been seen in the kitchen, slumped and dozing or in some subdued state? Then hearing EP move in did she move upstairs, seek out the bible for solace and shoot herself twice?
Did Sheila's body, as found by EP, lend to this scenario?
I think it unlikely and that reports by EP noting a female in the kitchen were simply a mistaken identity which resulted in an administrative error on the log but it would be good to rule this out.
Only one body was seen in the kitchen, a person with gray hair. Upon entering they actually got to inspect such body and it turned out to be Nevill. Sheila didn't have gray hair so it can't have been her that was seen and since only one body was seen, one body foudn upon entering it is rather obvious it is Nevill that was seen.
The claim about 2 bodies and a body being moved is a desperate attempt to say Sheila was alive at the time the police entered because then Jeremy can't have shot her.
There is no evidence to establish she didnt die around the same time as the rest. So some supporters try to invent some by insisting she was alive much longer and the proof is police saw her when they looked in the windows.
The problem is they are relying on reports from people not on the scene instead of witness statements. Teh witness statements rather easily deomonstrate there was one body, they thought it was an elderly female but upon inspecting it found out it was a male. Moreover the witness statemens note 2 women found in the master bedroom.
This is one of those issues where Bamber proponents are harming their own credibility twisting like this. It makes it harder to take them serious on the significant issues.