So what you are saying is that she never put up any struggle. Is that right? So actually what you are saying is that she meekly let someone point a gun at her throat and let then shoot her without any kind of fight to save herself.
Hartley. Whatever view you take you must of necessity accept that she had to defend herself in some way. Whether it was a fight with ralph, which you obviously do not hold to. Or a fight for her life with the killer? Conclusion: (1) If she was involved in a fight for her life, then there must have been a struggle. (2) She was involved in a fight with Ralph in one way or another.
Or (3) If there were no marks on her and she was as the report says "perfectly clean" then she must have shot herself and no struggle of any sort ensued.
No Grahame that is not true and is most certainly not the case. Stop trying the read between the lines because that's where you enter fantasy land.
Very simply, there is no evidence or indication that Sheila was involved in a fight or struggle with Ralph or anybody else. That is a fact, proven in a court of law, there is no evidence to detract from that, neither the courts, nor I, nor anybody else sound of mind, would accept a poor quality pixelated photograph as evidence to the contrary.
Now the part which you seem to have difficulty in understanding, because there was no evidence that something happened, that doesn't mean that it didn't, it doesn't mean that it did either, but there is nothing to base an argument on. However, the lack of other evidence which may indicate that she fought with Ralph, goes a long to making a much stronger case that Sheila was not involved in a struggle.
With regards to how Sheila was actually killed, we will probably never know, in fact the only way it would ever come to light is if Jeremy was responsible and he confessed. There are however very plausible possibilities as to how she was murdered which does not involve a struggle, for example she could have just seen her murdered children and entered a state of compliant apathetic shock, or she could have been at gun point and in fear of her life complied with commands given by her eventual murderer.
The evidence indicates what it indicates, you can't just make up alternative endings and expect people, or rather a court of law, to accept them when there is compelling evidence to the contrary.