Since I changed my mind from G to NG in the pretty early stages because some things never fit for me, and still do not, I always thought the
murder was not intended, it was either an argument or attack that got out of hand, and, Michelle was able to land a nasty blow on someone
causing them to become enraged, and/or Michelle was killed so she would not be able to identify the person or persons responsible.
And,I think someone was watching the home, and knew Jason was out of town, and waited for Shelle to leave.
I also think there were 2 people, and a really good possibility CY was taken from the home in Michelle's Lexus.
Cindy Beaver and Mrs, Hensley description of the cars and times match.
It could really be that simple,
Tragic, horrific, brutal, but, just something that went horribly wrong..
JMO