If Steven Avery is indeed a psychopath and plotted to kill Teresa Halbach, I would have assumed he would have tried to cover his tracks well so maybe he could kill again.
1) Why would he have left the RAV4 on his property when he could have disposed of it somewhere else along with Teresa's body and the key ?He thought he had more time to do this. After all she was missing for 3-4 days before anyone came looking for her.
Or why not just crush the car ? I believe he intended to do this, but didn't get around to it. He had other priorities such as cleaning up a crime scene and disposing of bones.
2) Why would he have involved Brendan knowing that it could get him arrested down the road if the kid squealed As his family states, most people are afraid of him. After all it was like 6 months before the kids squealed anyway...and that was only after the kid tried to commit suicide.
3) Why would he have shot Teresa knowing that gunshots could have been heard by anyone on the Avery property ? Really??? Seriously??? This is NOT a suburban area. Most people deer hunt and as I do recall deer hunting season was open at the time of her death. No one, and I mean no one would have thought a second about a gun shot. I know the area, my grandmother grew up in Two Rivers... ]
4) Why would he assault Teresa in his house knowing that anyone (including his parents) might stop by at any time. His parents live in Crivitz.....miles away, I want to guess at least 45 minutes, why would they show up there without calling first to make sure he was home?