A guy who is a month or two away from a $36 million dollar check gets impatient waiting for all that money and decides to rape and murder a woman that he telephonically arranges to come visit his property in the middle of a weekday in full view of various people coming and going from said property. Once he gets her inside his trailer and commences with said raping, he gets a knock on his door, and answering it, he sees his nephew with the mental capacity of a 9 year old. Rather than saying, "I'm busy", and since he knows his nephew does not possess any messy DNA that might clutter up the place, he invites him in to witness, participate in, and eventually confess about all the subsequent crimes that happen.
Later, after much raping, stabbing, cutting, slitting, etc, that happens without any blood loss, the woman is dragged to the garage where she is shot multiple times without any sound, and of course without any blood loss. Later that evening, they burn the woman's body a few yards away from where several people live, without the horrifying and distinctive smell caused by a burning body (and yes, without any blood loss). To make sure that no one will ever find the location where they burn stuff, they make sure to burn stuff in three locations.
At some point during this time, the guy and his nephew drive the woman's car (after first taking some of her bloody hair and drawing pictures with it in the back of the vehicle) to what they think is a perfect hiding spot behind 3 or 4 branches, which is located very close to a large and inconvenient car-crusher. They do this without leaving any fingerprints or DNA in the car, except for smeared blood in very obvious spots. Once the vehicle is out of sight behind the 3 or 4 branches, the guy decides to make sure the cops won't look for DNA under the car hood for at least 4 months by opening the car hood and disconnecting the battery.
Three days later the police come asking questions and want to look around inside the trailer. The guy lets them do it, knowing he is safe because all of the raping, stabbing, cutting, slitting, etc, that happened in his carpeted trailer happened without any blood loss. The very next day, this guy leaves for his family's cabin 100 miles away, but decides not to bring the woman's car key, bones, teeth, cell phone, camera, etc. to dispose of far away because he knows he's loved by the Manitowoc police department and they will never suspect him and search his property.