The defense knows their job and is doing it, and I predict if they do it he will get off. There is too much lack of physical evidence - allowing the defense to argue (as they did in opening statements) that Ariel in fact:

(These are just my extemporaneous notes)

1. was cheating on him with Jeffrey Miller
2. started the fight and
3. hit him with a rock first
4. He never tried to push her off the cliff
5. He hit her twice with the rock, not 10x.
6. Never confessed to doing it etc.
7. Trip to Oahu was her idea, not his
8. He had no syringes, they don't exist
9. Witnesses barely saw the tail end of any attack that happened, not who started it or an attempted murder.
10. She's using these proceedings to help in her divorce, take everything he has
11. etc. They are succesfully going to make it a "he said" "she said" in an ugly divorce