In RDI, Burke (B) almost certainly had some knowledge of the crime in most RDI, although his exact role varies from RDI. Unless u think B was sleeping through whole ordeal. While R's were staging, B might have awaken and caught them red-handed. One ? I have is whether B has ever suggested or hinted R's role in JB's death. Another ? is whether R's would have any reason to think B would stay quiet all these years. If R's thought B would ever let slip their role in JB's death, how did they decide against this possibility? Why not do a Jeffrey MacDonald and silence B along w/JB, since B might let slip R's involvement? Or do you prefer the idea that B was involved in JB's death? (For those who don't know, it is alleged MacDonald killed his wife, then his children, so as to silence the witnesses -- he claims it was 4 hippies who said acid's groovy kill the pigs) By allowing B to live, R's are risking having their perfect crime revealed by him, and I'm wondering how RDI account for this -- and why they didn't MacDonald him as well. They spent a considerable time staging the scene and they risked the possibility of B spilling the beans. And if they could kill JB and say "the killing will not be difficult, she will be beheaded" they could also kill B. Occam Razor implies that the reason R's did not worry B would expose their involvement of the crime and staging is that they did not, in fact, commit it.