Oh, I very much disagree. There is NO circumstantial evidence. There's just evidence that he was a shitty husband. There's not even a caused of death. Like I said, just looking at the case, it's as likely that she killed herself because he was inflicting so much emotional pain. I don't see how any jury could convict based on this case presented unless they were actually just finding him guilty of being a terrible person.
But a murderer? There's nothing. There's barely a case. I'm surprised it made it to court. I'm surprised a judge hasn't dismissed it. All you have are gut feelings and him admitting to a volley of affairs as well as being a superficial prick.