I've read over the numerous threads over the past week, and formed a somewhat theory. I have a kind of wild imagination that tends to run rampant, so please, take a small jog with me. Just go easy on me, with the rebuttals I KNOW I will receive!
This is where things immediately get interesting for me! We know KB liked her once a week Chai Latte (don't we all?). WHAT IF, PF had her so worn out and met her with said drink, during his pickup for baby K? With the price for them, I know I would accept! Could he have drugged it? Could KKL have given him enough Xanax, Soma, or the like to put in it that KB's body couldn't handle it? OR could he have switched up any of the medication she may have been on for anxiety/depression for something that appeared similar? With KKL's background she would have had the knowledge of the appearance of a good amount of prescriptions.
IMO it's REALLY DIFFICULT & extreem to go from poisoning someone to an all out blood bath murder. I don't see it!
My personal theory: PF figured out how to poison her (something in the Chai) and incapacitate her until KKL got there(ie: "you have a mess to clean up"). (black tote w/silver handles) PF & KKL weren't counting on the tote being air tight, KB dies from a mixture of overdose, lack of oxygen, & carbon monoxide poisoning. There is no blood (let's face it KKL is a pathological liar), aside from tampons and typical menses blood found in the home of a typical "child bearing-aged female"!
Ok you all can start your hole punching now. We all know PF & KKL are neither smart nor very good at hiding ANYTHING. Although, my sights are aimed on KKL for this. She jumped WWAAAAAAYYY too quickly at a plea deal for comfort, for just evidence tampering JMO of course.