Please know that I am just recently gaining interest in the case. I thought Teresa's blood was found in SA's yard and a drop in the garage, as well. I don't mind being corrected. It's a learning process for me.
Sometimes people get blind sided by evidence and the theories presented and forget to try and make common sense and logic out of a case. No I'm not pointed a finger at anyone here if that's what someone might be thinking...no worries

I am referring to perhaps the jurors who sat on the jury panel or anyone for that matter. People right away think, ah ha LE found a bullet with her blood on it, in SA's garage, therefore he must have shot her and is guilty. They get fixated on one or two things instead of using their own minds logically and asking themselves is there another way it could have happened. They believe everything they hear and believe it to be true and don't think outside the box so to speak. In other words, they put too much faith into what people say, believing it to be the gospel. Hope that makes sense.
IMO what really is the clincher is that TH's blood, hair nor her DNA was found anywhere in SA's bedroom where he and BD have been accused of raping, torturing and then mutilating her. Stabbing someone in the stomach and slitting their throat (according to BD) while she was bond to SA's bed by ropes and chains, would surely leave some trace of her there in that room. The mattress would have been saturated with blood unless SA made preparations first and put plastic on the bed. But then what about transporting her from the bedroom to the fire pit? Surely blood would have leaked somewhere along the path in which her body was moved. I would think stabbing someone or slitting their throat would also cause spurting of blood, at least from the throat. BD claims SA stabbed her first in the stomach. Had that happened, IMO pain and reflexes would have causes TB to be able to thrash about somewhat and there's no telling where blood could be dispersed. If she was cuffed to the wooden bed frame, surely there would have been scratches in the wood and blood could have soaked into the wood where the finish was worn off. No blood anywhere; not on the headboard of the bed, walls, ceiling carpet, bedding, or other furniture in that room, handcuffs that bound her, not one speck anywhere in SA's trailer. Not to forget that BD's DNA wasn't found either in SA's bedroom. IMO TH was not murdered in SA's bedroom the way BD claimed she was. This just goes to show he was coerced into a false confession as far as murdering her in SA's bedroom.
There are two theories LE are suggesting and it cannot be both. TH was either murdered as BD claims or she was shot in the garage where the bullet with a minute amount of her blood on it was found. And from what I understand, that bullet was crushed or damaged, not like it should have been if it had been fired right out of the gun. Theory one just doesn't make sense with no evidence of her in SA's bedroom, and theory two...if she was shot in the garage, why didn't investigators find her blood in the garage? With all the junk in the garage, and nothing was found with her blood on it. Nonsense theory IMHO. Not even in the cracks of the garage floor revealed anything. Huge chunks of the floor were removed where cracks formed and were examined, and not one speck of her blood, DNA or hair was found. Nothing to prove she was murdered in the garage, other than a spent bullet. Theory two doesn't add up IMO.
I do not believe she was shot or stabbed on the Avery property. She was murdered elsewhere. By who... I have not a clue but these theories should not have been considered by the jurors, too much reasonable doubt. JMO.