There's no evidence the perp ever came into close contact with the victims whether it be to inflict the gsw's or the non gsw's NB sustained.
That is because the 'evidence' was removed/cleaned.
"I know a few people suggest that Sheila did “ritual bathing” after supposedly killing her parents and her beloved little sons, but Nevill didn’t take a bath, so why didn’t they find any fibres of Sheilas nightdress on him? Nor ONE of her hairs? "
Why would she take a bath and hide evidence if she was deranged on a slaughter trip and was going to kill herself. Fact: people in the mindset before committing suicide are NOT thinking rationally.
Hmm wheres me gloves and apron must do a clean up here before I Shoot myself - twice!
I also question the extreme violence used to slaughter innocent people by a timid depressed female.
My guess, I am allowed to guess, if she was going to kill anyone ,especially her children, she would use a less violent means perhaps poison.