Got a few more episodes in. Almost done.
I feel like the defense took the wrong tack with the DNA lab tech that messed the test up. At least in the court room, they didn't mention once that she could've accidentally contaminated the sample with Theresa Halbach's DNA. She was distracted and careless enough to get her own DNA in there, how do we know she didn't get Theresa's in there as well. I think the jury will look at the inconclusive protocol as more of a technicality. "Yeah she wasn't supposed to say it's a match, but we know Theresa's DNA was in there so it wasn't a big deal". Instead they tried to make her look malicious in trying to follow a command to make sure the DNA came back as a match. The jury is going to be less likely to go with that theory IMO.
It seems very unlikely that Theresa was killed in the trailer or garage. That garage was filthy, there's no way they cleaned up all of the blood evidence if she died there. There would've been a splatter on a piece of equipment or on the wall somewhere that he missed in the cleanup.
The bones in the quarry thing still bugs me. It makes no sense to burn the body outside of your house in a tire fire, then transfer a couple of bones somewhere else. Assuming he wasn't framed, that would mean that there's a 2nd dead body out there that no one seems to care about.
She was shot with a .22. Highly likely there would be no splatter. More likely just a small puddle of blood, if that. And that could easily be cleaned up with paint thinner, gasoline and bleach, as previously posted. BD also showed up at his mom's house with bleach stained clothes and told her he was helping SA clean up the garage. A .22 is a small caliber bullet. It is used primarily to hunt small game such as squirrels or rabbits. If it is used because it does little damage to squirrels how much damage do you think there would be to a human body?
I think the bones in the quarry were checked in to. There is a well-known missing person case in the Fox Valley area (Laurie Depies) that was open for 23 years until a prisoner confessed to it in 2011. Interestingly enough, she has a resemblance to Teresa Halbach. IIRC they checked in to that possibility. I think the bones were later determined to be non-human.
ETA Just checked the time-frame on when Depies was missing and when Avery was in jail. Doesn't match up. It may have been another missing woman at the time.