Here's the thing, for me at least.
I believe KK wanted KB out of the way. KB stood between her and "her man." What other reason could there be for her to get involved in this horrible crime? Suggestions anyone? BUT, PF wanted KB gone too. He KNEW he could not live up to her expectations as a husband. I'm sure he's been sowing his wild oats for some time and had no plans to change his life style. Maybe initially he thought it could work. But let's face it, him carrying the baby onto the job wasn't going to work for too long. I'm sure he felt emasculated by someone like KB. A bright light, a professional with possibilities of moving up. I'm not demeaning trades here, just maybe not a good match never mind his anger management issues. She may have loved him but she didn't NEED him to survive. I believe he was still stringing KB along and that she had no idea what was coming. He was also giving hope to KK at the same time, by staying in contact, owning horses together (if that's true) and maybe "hooking up" now and then. This would have meant much more to her than to him.
I wouldn't be surprised if they conspired together to do this and KK is throwing him under the bus with the "solicitation". Must also take into consideration that someone else may have been solicited as well at some point in those 3 months and has come forward. At this point, I just think LE could get it that wrong and that KK was the driving force. They had to have more than just KK telling them that PF solicited her to kill KB, 3 times, two times, whatever. I REALLY hope that accusation can be backed up through communication evidence and they are not just taking KK's word for it, because anything coming out of her mouth should be suspect. Regardless, I believe PF did the deed, with or without her and LE have the evidence. She took the phone to give him an alibi, hoping if they got away with this, that they would live happily ever after.
Not in this lifetime. MOO