Maybe somebody wrote about this so if that is the case then sorry for posting again. I watched the documentaries, read a lot of things about this case over the years, watched the movie, and I even looked at some crime photos (today, and it was very hard to look at that). I think like most of you that this is not the murder scene, because if it was the bodies, among other things, of SB, MM and CB would not looked like that, in my opinion. The coroner said that rigor mortis was present, and we can see that on the evidence pictures. So muscles stiffen starting between 2-6 hours following death and starts with eyelids, neck and jaw. Dead body holds its position as rigor mortis sets.The degree of rigor mortis may be used in forensic pathology to determine the approximate time of death. A dead body holds its position as rigor mortis sets in. If the body is moved after death, but before rigor mortis begins, forensic techniques such as livor mortis can be applied. If the position in which a body is found does not match the location where it is found (for example, if it is flat on its back with one arm sticking straight up), that could mean someone moved it. Several factors also affect the progression of rigor mortis, and investigators take these into account when estimating the time of death.
So, one of the boys CB was lying on his right side and his legs were close together, but the other two SB and MM were lying partially on their sides but their legs were separated. So, if they were dumped there right after they were murdered or if the murder took place there they would not be in that position (water was low and still or like in the pictures, there is no water there, if the bodies were dumped and they fell on their knees, not likely, after rigor mortis the bodies would not fell to the side in that position, to my opinion) even if something was put between their knees to hold them in that position but then there would be marks to sustain that. So, for me there is no doubt that this is not the murder scene and in my opinion I don't understand why is there speculation about it. If this is the crime scene then the murderer would have to be there for long time after the murders to wait for the rigor mortis to set (sometimes it takes only 30 min to start rigor mortis but for the whole body it takes hours) so that those two boys would maintain in that position, even if murder happened very near that place it wouldn't be possible because people were searching for them few hours later. So they were put there after few hours of their death but how and at what time is a really big mystery because of the search party. Those guys (and I think that there were more than one and very sick grownups not teens to do that) had to be very meticulous and they new what they were doing and how to tide them in that manner (i read somewhere that that was military stile, correct me if I'm wrong) or how to not leave anything behind for police to find. Teens couldn't do that no matter how clever, mad or whatever. It had to be someone they knew and were scared of and they had to know that the kids go there, i'm sure that they went there often. Well that is what I think, and yes about the hair on the knot 9(secondary transfer), why is there no hairs on the knots of DE or JB because they had long hair at that time and as they were not 'experienced' murderers I think that hair from them would be found in the knot not some secondary transfer from TH.
My grammar is not good, sorry for that (english not my mother language), but you understand what I want to say.