What makes this case all the much more sad:
my interpretation only!
It seems to me PF wooed KB they started up a relationship, he was the classic wolf in sheeps clothing.
PF made her promises that he knew he wouldn't keep, Their own ranch out in the country he would make big money etc.
Perfect house perfect family and so on.
He gets her pregnant, she asks for a commitment and rightfully so.
He lies and says its going to happen I just have to make more money, prices on livestock are low etc. just give me more time.
I think his lies finally caught up to him, and KB started asking questions he couldn't lie his way out of.
PF's true colors start to show through and he realizes that he can't lead her on forever bc she wasn't buying his bs anymore.
PF decided that control of his child was worth more than her life, bc how dare she call him out on his lies.
PF starts to look for away to eliminate her and save face and protect his property(his child).
That my friends is a true scocialpath/pyschopath and the heart of this sad reality.
I think thats pretty close to what this whole case boils down to IMO
So incredibly sad!
Especially even more tragic, as I think KB was worth more than a million PF's
JMO how do you think my aim is?
ETA: I think KK was a mere convenience to pf, somebody that he knew was obsessed with him and would do anything to be with him.