POSSIBLE SPOILERS
I think we are on episode 5 or 6. I know there were some items of evidence left out of the documentary or trial. I have read about those. However, the thing I keep coming back to is the lack of blood evidence in the trailer or garage. I really don't think Avery could have possibly cleaned everything up. And if he had, he'd have wiped his own DNA away as well. Looking at how cluttered the garage was, there would have been blood spatter on all kinds of stuff, and they found none of her DNA except the questionable and possibly contaminated sample from the bullet they found...many months later. And the key is a joke. His DNA is on it but not hers? How's that work when it was HER key? Not to mention the blood vial in evidence that had been obviously opened and tampered with. There's some circumstantial evidence but a total lack of reliable, physical, scientific evidence. Seems to me that reasonable doubt, at a very minimum, should have been ample in this case.
ETA: The prosecutor (Krantz?) and that officer Andrew Coburn both give me the creeps.