If I was on the jury I would believe AS murdered Rebecca and the plaintiff has proven its case.
1. AS had means, motive and opportunity.
2. AS is not a credible witness going on his 911 call, his polygraph result with his account and all the arm movements he was making to convince the polygrapher, and his hostile manner and obviously rehearsed court testimony.
3. I believe he was awake that night because he said Max's accident happened yesterday.
4. The case is clearly murder with bound feet, fingerprints on the knife blade, blood on the knife handle, the mechanics of getting herself over the railing, the gag, the screams, the injuries to her head and back, her legs bent in rigor, the fractured (cricoid?) bone in her neck, the evidence she was hog-tied, the third-person message on the door, her nakedness, the plastic bag with her DNA inside it, the overturned chair, the bed that moved but never left drag marks on the carpet, the wiped down items and places,...(may have forgotten a few points but that seems like most of it).
5. AS knew how to tie the knots even if he claims ignorance.
6. AS writes in capitals and the slant of the letters matches his writing.
7. The cutting down/table/CPR/emergency call/texting JS story is a farce.
8. His "embarrassing" confession to masterbating that morning probably to explain semen they might find on the rope,
9. The investigation that was not an investigation.
10. AS saying he thinks it was suicide when all the evidence points to murder - why wouldn't he now have changed his opinion and said it must have been a different perpetrator.
11. AS saying in his police interview that he hoped she wasn't tied up - (which is an admission in and of itself he didn't think suicide) all that business of not noticing and asking the detectives etc.
12. The impossibility of CPR with her jaw being in rigor at the very least he could not have tilted her head back or compressed her chest while holding the cellphone.
13. Knowing the house would be unlocked to get a knife when there is a kitchen in the guest house.
14. Noticing what type of rope it was even when he would hardly admit to knowing what he was moving out of the way.
15. Saying immediately she hanged herself.
16. Distancing from Rebecca - calling her "something hanging" and not a person he had known for a few years.
17. Touching everything - the gag and wrist knots to explain his touch DNA (if they'd bothered to look for it).
18. His repeated emphasis on what his father said to him about Max so that he could not possibly have thought she saved him and painted it on the door.
Yes, I would vote that the plaintiff proved its case.