What I do not understand is how it is possible that they did not decide that at the moment they found that Teresa's burned remains had been moved from one burn pit on the other side of the Avery property (which was determined by the pelvic fragments found at the other burn site) to the burn pit in the back yard, that it was possible that a third party was involved. Instead, they searched his garage and bedroom as the source of the original crime scene, where they Infact found zero forensic evidence linking her to have even set foot in either location. Yet, they found her RAV4 with her blood in the back of the vehicle, which should immediately suggest that first of all, she was transported before she was burned, immediately after being shot. Its unlikely that Mr. Avery would need to use Teresas vehicle to transport her body from his room or his garage to the burn pit 50 feet from his back door, in his back yard. these things should indicate that the crime scene took place elsewhere, especially since her pelvic-bone fragments were found in a separate burn pit, quite a ways away from Steven's house. So, WHY did they not look elsewhere to find the location of the actual murder scene? Where is the blood that she lost from being shot in the head? I guarantee it's not in the house, or the garage... I'm thinking there would have been quite a bit more substantial evidence had they actually found the scene of the crime. Instead of wasting precious time in one location, the investigators should have had multiple search parties looking for evidence of a fairly bloody crime scene, she had to have been dragged/carried to the back of her car.
I also noticed that Teresas key to her car was on a bottom clip of a lanyard, Just throwing this out there... Where's the top half? People carry keys on lanyards like that to prevent themselves from losing them. Her family would know if she carried them around her neck, or if she carried them in a pocket, or in her purse, or if they were ever attached to the lanyard portion. If they were around her neck you could assume that possibly the top half was burned with her body, or the murderer kept it as a sort of trophy, or that if there was a struggle it came unclipped at the actual crimescene, and is still there, maybe it's in her car, or maybe that's just how she carried her keys.... Key... Where are her house keys? There was a single car key on that lanyard piece, one key, to her car, without a trace of Teresas DNA on it, a key that she no doubt used to get to the Avery house in the first place. I don't know about you but I don't carry 1 key Per lanyard, and make sure it's clean from my DNA at all times. If I was Steven Avery trying to wash the key, I would make damn sure there was no way in hell that key could ever be linked back to me.
It's true that too many keys and the weight from key chains and lanyards can cause issues with an ignition in a vehicle, but not to the point where it would be necessary to separate house keys from cars keys. Especially if the vehicle belonged to her, and was her regular form of transportation. If it was a shared vehicle with a spouse or roommate I can see why there would be one lanyard for the car so that they can share without turning over all other necessary keys.
Even so, where is her house key? I doubt she left it at home. It just rubs me wrong that Lenk "found the key"... maybe having a single car key on a lanyard piece just made it that much easier to point out it's a Toyota key from a distance,and in plain view. I don't know about you but I wouldn't immediately think it was super weird to find a single Toyota key laying around a house located on the property of a car wrecking yard. I'm surprised they didn't find at least 70 keys matching that description. Seems a little suspicious to me.