Oh, it gets better, so he was knocked out, burned on the AGA, went upstairs and got shot four times, came down stairs and got shot again?
Its not only the scenario to incorporate the Aga marks though HB,as I have pointed out the CCRC will have to explain why JB didn't use all the information about the killings over the years to his advantage if he's guilty ie.the police moving Nevill and the Bible.
You have to consider the whole picture of what Bambers actions have been over the last 38 years,ie,wasting time paying experts to prove that the rifle barrel made the marks to Nevills back when he knew full well it was the Aga.