It's funny, they make you swear to tell the truth and nothing but the truth and then won't believe you if you tell them what you used for a handload. Even if your freedom, and maybe even life, depends on it.
Jellybean, I totally agree with you on one point, respectfully disagree on some others.
We agree that Bias had no motive to murder his wife. On the other hand, she had a history of attempting suicide and of mental illness.
The reason the single argument of the GSR carried so much weight is that juries have always tended to see forensic evidence as hard science that is more reliable than testimony. With no testing in to show that Bias' loads would not have left GSR at the distance in question, they apparently believed that the crime lab (which tested with much more powerful ammo) had proven him a liar. Bias' loads were so weak that the death bullet barely made it into her brain, not something an experienced shooter/reloader would use on someone he INTENDED to kill.
Between the first trial and the third, the prosecution did in fact make a huge sea change, from a theory of cold-blooded murder to a theory of accidental discharge. You said, "The only thing that changed was intent." Malicious intent is a key ingredient in a murder charge.
Finally, while you may be right in some cases about three stories in the courtroom (the prosecution's, the defense's,and the truth), the fact is that in a huge number of cases, the prosecution DOES have the truth and ends up convicting a guilty person who deserves it. This was one of the rare but real cases, in my opinion, where it was the defendant who was telling the truth...but because his handloads weren't allowed as evidence, couldn't prove it.
On the other hand, I've seen lots of cases where GSR testing of factory ammo proved in court the good guy was telling the truth about the shooting and the bad guy was lying. That's something I want to have on my side, and it's why I use factory ammo for defensive purposes.
Mas, I don't know what motive Bias would have had, if any, as my source of information is quite lacking, but that's the internet for you.
The information I had says that the only difference between the first two and third trials was his culpability, which sounds like everything was exactly the same except that maybe when he pointed the pistol at her and pulled the trigger instead of intending to shoot her he was only intending to scare her or maybe even, since it was at the back of her head he was only acting out what he wanted to do and really believed that the pistol was empty or that the hammer would fall on an empty chamber.
Even if the prosecution did make a big change in their "story" there could have been a reason for it, such as new evidence that was uncovered between trials, looking at the old evidence in a different manner while examining new motives, or just trying to keep the defense from arguing double jeopardy. While some evidence may be unwavering others may be quite vague and not so easy to put in rigid terms. But even though all the words in their story may have changed, the elements could still be satisfied with the same answers.
From all of our previous discussions of this case, and the information from you alone, it seems he could have been found guilty of premeditated murder just by placing a loaded firearm by her bedside, after two previous suicide attempts, and loading it with special ammunition to help her with her sensitivity to recoil.
But even with the given facts that the state had absolutely no evidence except the lack of GSR on the deceased, and then they wouldn't allow any evidence that could possibly show the accused was innocent, if it existed, his conviction should have been overturned on appeal. Also, while the ammunition he loaded would be destroyed if shot for testing, it could be completely disassembled, examined and put right back together as if nothing had ever happened to it. I can see such incompetence and ignorance happening in one court, but two is pretty rare. And if that was the case, then my opinion of selecting the proper attorney is more important then choosing factory ammo sounds more reasonable.
Besides, most people that handload ammunition for self defense load it pretty close to factory specs so I believe if it was claimed by the state to be some factory round it won't make a lot of difference. Different types of powder do give varying results, but there are factors that can affect GSR "distance" results and they are usually given as estimates instead of written in stone figures. Also, labs do examine ammunition used in shootings very closely if there is any suspicion and if they find the ammunition used wasn't the ammunition tested and lie about it, they are in just as much trouble as the defendant, and may suffer more serious consequences.
This has been a nice diversion from beating the horses from the other same old questions to death, but we're pretty much back at the same old place we've always ended. Like many theories, (such as evolution), this one will probably never be proven and will only lead to an endless debate, but at least jack won't have to learn how to do a search just yet.