Do you believe he had nothing to do with this?
I think the evidence is weak, objectively. It's all dependent on random he-said she-said comments made over the years, plus the testimony of a guy who could have done it himself and is being bribed by the state to testify against ZA.
Otherwise, it's just junk trying to be passed off as pointing at ZA when it really doesn't implicate him any more than thousands of others. They can tie a gun - some random gun - to ZA, but no idea whether it was The Gun (can't even say for sure if it was the right caliber), and their best testimony about a gunshot is that the witness says he and others thought she was already dead before she was shot (which legally might even make the gunshot irrelevant, because it's not murder to shoot a corpse). The cell phone evidence is pretty much junk and proves nothing - it indicates incredibly broad areas so the "margin of error" is too great for it to be indicative of the specificity in location they needed. There was HB "stuff" strewn lots of places, pointing to no one in particular. Nothing whatsoever found on either SA property or ZA property. SA was supposedly being creepy at a coon hunt days before (which isn't a crime, and which doesn't pertain to ZA anyhow). The fact that there may have been a burn barrel, in an area where probably every property has one, was a worthless assertion.
So it all falls on the reliability of the testimony of a guy (JA) who by his own admission is trying to please the state in what he says on the stand, who is bribing him to testify, and who was provided access to all the state's evidence in advance, to be able to tailor his answers to fit. If he had testified without knowing the coming testimony of others, or if there was PRIMARY evidence to confirm some of what he said, then I could give him greater weight. In that context, the fact that he was well-rehearsed, very polished, is probably NOT telling us what it would seem, because it may mean they drilled him until he had it down pat, because he was really the state's case.
As I've said earlier, if I was on the jury, it's not been proven BARD to me, because I have so many question-marks about the evidence and about JA the Paid Witness really being the only "proof" of anything, but I would probably vote guilty anyhow to something (I know that's not how it's supposed to work, but I couldn't vote to let ZA walk) but would have to be sure there is no DP.