Find it hard to believe he willingly told someone what happened therefore wonder if he was just playing a game, he was careful to not mention killing the twins and saying Sheila killed their parents but was happy to portray himself as the manipulator/puppet master. I don't believe it would be accurate but there could have been elements of truth in his story. Think PH believes they were in it together.
Blaming Sheila would allow him to distance himself from it? He did not have to mention the killing of the twins because he would not want to go into detail about that part of it? Never spoke to PH but I have always had this gut feeling they were both involved though? I know it seems strange but a lot of people who have been in jail like to brag that they have been inside? They tell you what went on in jail it puts this macho side to them? Not everyone though. What I am getting at it could be a way of survival in jail don't mess with me type of thing, he would not want to mention killing the twins because this would put him in a different league?