Google not finding anything new for me either.
At the moment the official position seems to be that CS says NL promised him something ten years ago and that she failed to fulfill that promise, and that her failure to do what she promised was so major that it caused him to strangle her, divorce her and try to destroy her career.
At the time he described the incident as a playful tiff and a minor disagreement.
If it was that bad, he could have just divorced her without the whole strangling bit, couldn't he?