I do believe it to be Sheila in the 'still/video' photo - same nightie, same nose, same wounds. (Even the 'other forum' accept it is Sheila as they explain the blood is due to Sheila being moved.)
However, IMO, the picture with all the blood is how I'd imagine someone would look if they had been shot twice through the neck.
I wonder if she had been cleaned up? Although Rochy thinks it looks like too good a job, in the original photo we are used to seeing of Sheila on the floor, which shows two wounds and trickles of blood, with pooling of blood under her arm, it looks like there are faint fingermarks on her throat.
I'm trying to work out why there is no rifle in this new picture. Was it by Sheila's side perhaps?
Both pics show two wounds to the throat. But which was taken first? Would a photo be taken just before a video, because to perform CPR, the police must have realised she was just recently shot a second time and they wouldn't have done this with rifle still over her, so how long would she have been in that position? Seconds?! It must be the other way round.
In that case, why would they then just produce the photos of Sheila, showing her looking relatively peaceful/clean with rifle across her body (in different positions)? They must have been taken last and therefore staged.