It was June who would have done that.
If Neville’s head was on the pillows at all, it alters all the positioning of his body alignment with the Aga, and puts his back further away from the contact points, also the blood pooling is entirely consistent with Nevill being found where he was, with his head in the coal scuttle and not around the Aga floor. Don’t mistake the red Flora pattern in the Pillow as blood, because it’s consistent with other matching pillows not in the Crime Scene. The rug in the after pictures shows no sign of blood pooling either.
Then we move onto the Blood Pooling….. this would happen where the body is during and shortly after death, or when he was killed, circulation would have ceased at this point, blood would still be mobile for a short period even after death, gravity (with his head in the coal scuttle bent over) is consistent with mobile pooling around the coal scuttle and liver mortis, If Nevill had been shot, or left elsewhere by the Aga for hours, and then moved four hours later, the pooling would reflect the earlier position and not neatly collect around the coal scuttle.
You keep adding problems that don’t help, the blood tells you exactly where Neville was at the time of death, and not placed there four hours later, the blood is not cooperating with your’s or Boyce’s Theory at all Bubo. If we look at the rug, there’s no blood at all consistent with blood pooling, imagine the head on those pillows and then work out where his back contact points would then align with the Aga, the head itself is aligned with the contact points and not his back, This pillows actually work against your Aga theory.
Do you think June Prayed over Neville while she placed the cushions under his head, or did she do it to hide the blood on the rug?