https://www.google.com/amp/amp.usatoday.com/story/79010588/
It's a complicated case, but for being so long, the docementary left out a lot of evidence/allegations that make Avery look far less innocent.
Other than the fact that a majority of that is sourced back to the disgraced Kratz himself, some of it is covered in a roundabout way, and was left out of the trial itself for good reason;
1. The lab was an abject failure at handling the evidence collection for the Rav4. It came out through some digging that the evidence he refers to here wasn't presented because it was compromised. The person collecting these samples didn't follow protocol when it came to changing their gloves, and handled some of Avery's possessions just before getting the alleged sample of his DNA in her car.
2. This was covered in the Doc. It wasn't exactly sugar coated either. They outright said he threw his cat into a fire pit, and it did not paint Avery as a great person. He acknowledged he did it while drinking one night. Unless Kratz can give a reason it was "much worse" he's just blowing smoke.
3. This was covered in the Doc as well. It was never denied that her remains were found on his property. What the prosecution has never accounted for was the fact that the remains appeared to have been moved, and that there were other sites in which they found burned remains of the body--a quarry like a mile or two away.
4. Kratz said, and complete speculation. It wasn't in the trial because it was a he said she said at best, and speculative to the core. It is also a text book example of circumstantial evidence.
5. Kratz may want to rewatch because I'm pretty sure this was mentioned. During a scene where a witness for the state is talking about the burn barrel they mention her remains "and possessions" were found in the barrel.
6. That bullet also wasn't found during the initial search. It was found months later when they went back and basically took over the Avery compound for an entire week--something that is unheard of in its own right--so either the cops were so inept they missed it the first time, or the evidence wasn't as air tight as Kratz claims. This was the same crime lab that screwed up like 80% of the evidence they handled for this case.
7. More mystery evidence that miraculously didn't make the trial for
reasons. I have heard of the alleged confession Avery gave while in Jail, and that was pretty bullshit. Basically a cell mate of his who was hoping to get a reduced sentence told the jailers that Avery had admitted to him he killed TH. The problem was the guy had everything to gain and nothing to lose, and I believe had a long history of criminal activity and lying to law enforcement.
I highly recommend this crime doc if you liked MAM - An Unreal Dream: The Michael Morton Story
https://www.amazon.com/Unreal-Dream-Michael-Morton-Story/dp/B011P27IT2
Alternatively, there is an amazing 2 part write-up
here. This writer covered a couple cases and they are all insane. I recommend checking them out.
On the last two episodes. Am I wrong for feeling irked by Teresa's brother who is praising the police and accepting everything they say without any critical thinking? I mean, you may be grieving, but convicting someone for the hell of it is not my idea of bringing justice for my family member, especially if it's someone who seemed to not be involved. Should I excuse him for grieving? Or can I be critical of him too? I don't know.
This has always bothered me. He came off as just wanted it to be over as quick as possible, with no real care for the justice system. The part that really stuck out to me was during the Dassey trial when they interview him and he says, paraphrasing, "I don't even know why we're here, he already confessed." Like did you even watch that confession? It was the least believable shit I've ever seen. They're feeding him details about the murder and he's just parroting it back. I get that he lost a loved one and sometimes that can really change people, but he consistently seemed like he just didn't care about any of the evidence. Almost as infuriating as him was the guy working with Katz on the Avery trial whenever he talked about the police. "Decent. Honest. Hard working men. It makes my blood boil [to suggest they would do something like this]." That guy is a real douche.