I think I am one of the handful of people here that believe that he had NO involvement in his wife's horrific murder...That information HAD to come from Mark.
I contemplated that possibility for quite a while. As some say, CWW could have planned the crime down to the details of where to park, how to access the house through the unbolted side door, etc, from his computer in Missouri, but I couldn't come up with a reason why he'd go to all that trouble.