There is a LOT of collusion going on here. Patsy Ramsey almost certainly knew the circumstances of Jon-Benet's death, and had successfully concealed the facts up until almost the time she died, leaving a deathbed confession of sorts.
If nobody talked, then nobody was going to get caught. Sure, it was accidental, and there was a LOT of covering up after the fact, obfuscating and muddying the evidence, seeming to lead away from the prime suspects in this case.
In many ways Jon-Benet was a very tormented little girl.
Well, looks like those freepers in the Patsy Ramsey fan club are going to have to find another mope to pin the murder on. Maybe little green men from a spaceship did it?
I believe Patsy Ramsey is facing judgment now for what really happened to little Jon-Benet.