I honestly don’t know. I’m sure he’s being encouraged to by his family, but other than saying if he hadn’t met NK none if this would have happened (and one author claiming he told her NK was into some really dark stuff) it seems he hasn’t accused her of anything.
He may become desperate enough to get there eventually, but it would be a waste of time. After falsely claiming SW killed the girls, for anyone to believe him he’d need indisputable proof NK was involved.
And even if true, I doubt he has any. LE already has his electronic records and any crime scene evidence he might point to is probably long gone.
Plus, even if she was an accomplice and he can prove it, unless the proof was newly discovered it will get him nowhere. CO law prohibits a defendant from using withheld info as grounds for an appeal.
I have no idea if NK was an accomplice or not. Either way There are plenty of reasons CW might not play that card:
1. He still loves her and wants to “protect” her. Not because he cares about her but because it helps justify what he’s done in his own mind.
2. NK knows stuff and he’s desperate what she knows never comes to light. And as
@Nikynoo suspects, medical records might be part of it. CW filed to keep medical records from the court, and shortly after that request was denied CW unexpectedly proposed a plea deal. With no trial, the medical records never entered evidence.
3). He wants to accuse her but his lawyer explains even if she’s found guilty of something CW will still rot in jail.