Just so I'm clear on this. You think the parents were solely responsible for all strangulation?
Do you think JonBenet dead or alive when this occurred?
I'd like to answer the second question first. The evidence shows that JonBenet was alive when she was strangled, but only in the most technical sense, ie, barely alive.
As to the first question, yes, I think they did all of that. As to how it was done, I used to think that Patsy did the strangulation, with John telling her, "this is your mess, you clean it up." I'm not so sure of that anymore. I thought that because they were her fibers there, but that just shows she handled those items, not that she used them. Also, you'd figure she did that immediately, which would not account for everything else.
Here's an idea, and I'd like everyone's thoughts on it: PR handled the items; cord, tape, etc. Maybe she even placed the cord around JB's neck, but did nothing with it, thinking that might be enough. If at that point, JR sent her upstairs to write, he would have JB all to himself to do what "needed" doing, sparing Patsy the sight of it. Now, if JB was on her back when Patsy left, she'd be in that position for the paintstick to be jabbed. (
JonBenet, please forgive me for doing this.) I think that's when his fibers got into her panties. Then, knowing the cord would not fool anyone as found, he proceeded to actually strangle her, which is the only way to make it look like she was strangled. He had flipped her onto her stomach to do that. Then he'd have to flip her again, because she was on her back when found, and apply the tape (if it wasn't on already, and I don't think it was) and wrist ties.
Thus, since Patsy hadn't seen the cord embedded in JB's neck, she would have been horrified when the body was brought up, even if she was acting it up, laying it on thick.
But, I'm still not completely satisfied that it went down exactly that way. A few problems: one, if Patsy didn't know about the strangulation until the body was brought up, I'm not sure she'd be able to keep acting through that. Two, if John did apply the wrist ties, he, of the two, would know how phony it looked, and would have tied them tighter. But I'm not ever sure about that, because that idea might not have occurred to him until later, thus the story about trying to undo them.
Oh, BROTHER. The more I try to figure this, the more I get twisted up. Life was a LOT easier for me when I was IDI and could just handwave everything away by saying, "well, this person was a psychopath."