If my hands are dirty for whatever reason , or preparing food or after using the toilet I wash my hands. That way they get clean.
There is no reason not to think Sheila did not wash her hands. The palm print evidence now revealed indicates that she did at some time.
People should stick to making posts that are sensible and not profoundly stupid.
I think it is quite credible that she washed her hands. What I find incredible are those people who don't think it is credible. 
she must have washed her clothes too as nothing was found on her nightdress also lol
Well, I don“t know if this has anything to do with the shootings, but Sheila had put some clothes to soak in the scullery. As far as I know, a pair of pants, a blouse of some sort in one bucket and a pair of bloodied knickers in another. Those items, incredibly, were not seized by EP or examined in any way.
She COULD have changed into the nightgown. She was not wearing knickers at the time of death.