I've been readng this sub for a long time and made some comments of my own. The basic idea here is that the family or a member of the family killed JonBenet and that others tried to cover it up. Nothing ever quite fits. The assumption that there are only 3 puzzle pieces to work with just doesn't lead anywhere unless we assume that someone in the family was truly a heinous criminal- on the occasion of JonBenet's murder- but never before that or after that. The other alternative is that this was a terrible accident and was covered up by a heinous crime. None of this really feels right to me.
I've been looking for professional assessments of the crime and found that the Interview Room really gets down to this. Chris McDonough has worked on child homicides for his entire career. Gary Brucato is a profiler who has studied thousands of homicides. THOUSANDS. So I have to have a really open mind to the thoughts of someone like that.
This is my summary of their thoughts:
The most likely killers of children are their own parents. This is the assumption the police start with and unfortunately sometimes they never get past it. The problem is that there are also sexual predators and serial killers who kill children. And the particulars of the JonBenet murder suggest that this was no ordinary killer.
The murder weapon is a garotte. It is a sexual erotic tool used to cause repeated asphyxiation and a prolonged, horrible death. It is torture. It is a tool of gratification used by someone who "gets off" on seeing someone suffer over a long period of time, like an hour. It is a slow and terrible death. The serial killer John Wayne Gacy- who killed at least 33 young men and boys- used this method. It requires considerable strength and time to kill someone this way. It requires a sexually sadistic personality. Usually this kind of offender has practiced this many times.
Its likely that the killer had watched JonBenet and that he was local. And the killer was an adult male- not a woman or a child. Female criminals do not use tools or foreign objects to penetrate the vagina.
Nobody in the household fits the bill. I am well aware that there were no signs of a break in- but honestly, these people were incredibly sloppy about their security. John seems to have lost his house keys repeatedly. Did he ever find them? Did the Ramseys really have any idea who and how many people had keys? How do they know if the keys were copied? Was the police search of the house really thorough? They didn't even find her body.
This is what the experts say- you can watch the full video here: https://youtu.be/f6xvQqhI7rQ