Apparently there are e-mails in the thousands (one report said 1,400 I think), but when I heard them, there was nothing definite that proved an affair. AS was very cryptic in hers, very vague. The only one I remember that gave a clue was when she apologized about her "betrayal". Then there's Hemy's reminding her of their cozy morning-after but again nothing said that definitely relates to intimacies of a sexual nature.
IMO she was careful not to leave an electronic, phone or paper trail of anything that could be construed as a romance. She wanted her double life. She wanted the attention but she did not want to be tied down with HN. And she didn't want to get caught.
The details HN provided were, I think, in the interview with LE that was shown to the jury at the trial. (I read ahead to the verdict and apparently this was very powerful). Nothing was said by him that implicated her in planning the murder, as far as I know.
I agree with all you've said about the circumstantial evidence AND her actions following the shooting would indicate some knowledge...but how much foreknowledge and how long before it happened? All I've learned thus far (unless I missed something) is that during their relationship she complained Rusty was not being a good father (HN's apparent motive for "saving" the kids), she was unhappy in the marriage, they had problems...and IRC a friend testifying that part of AS' complaints had to do with problems with RS dropping the children off at their activities. Just from hearing this information, HN could have learned his routine from that.
But it seems clear that at some point she made it clear that she was not going to leave Rusty. How do we go from that to her deciding to help kill Rusty? All of this together is circumstantial evidence which may help in a conspiracy charge, but how do they charge her with murder? All I can guess is they have more evidence we have not heard. It should be interesting.
Thanks for the discussion.