His room was searched by police 5 times.
Then the guy from another county walks in the room when no one is looking and says hey look what I found!
1. the key
That is probably her spare key. This is the valet key and wont open the glove box.
After the documentary someone found a photo of Theresa holding the regular keys:
http://www.dailystar.co.uk/showbiz-tv/hot-tv/489131/Making-A-Murderer-Teresa-Halbach-keys
Doesnt help that they only found his dna on it, and that they could not find the key the 6th times they previously searched the room .
2. The burning
The burning i think took place somewhere else? wasnt this explained? Also even if steven is not the most intelligent guy, why would he burn her in the pit when he could just burn everything in the industrial oven located on the salvage yard?
3. The car
The car was found by her ex-boyfriend or someone. A guy that should not have been allowed to search for it in the first place. Also there is the part where the creepy officer calls in and ask about the cars'< registration number like he is actually looking at it. Also again, why wouldnt Steven just smash the car? It was in the salvage yard after all.
4. no murder scene.
No dna found in the garage nor in the bedroom. The garage was not bleached they concluded. So that is weird.
5. Dna evidence
The lady performing the tests did not follow protocol, and usually they do throw such test results out. But not in this case for some reason.
Any blood evidence is under doubt because they found that the blood vial had been tampered with ect.
Alot of shady stuff going on here, even if he did it.