As far as I recall, the report said that there was blood on the carpet near the door, at the foot of the bed and the side of the bed furthest from the door, and he thought it was not Sheila's blood. I'd like to see more on that because that is hugely important as to what happened in that bedroom and who was shot there.
Mike has said that Neville's blood was not found in the bedroom, but did they look for it? If not, then it could have been there - on the floor. Who else would bleed on the carpet on the side of the bed furthest from the door?