Most striking of all was the vicious nature of the killing — a sign to investigators that the killer may have been someone who knew Karen Tipton.
An expert testified Karen was on the family computer the day she died and Powell believes she may have made a shocking discovery.
Meanwhile, David wonders if he may be too suburban for Skye's new city lifestyle.
And then there's the brutality of the murder.
At that point, he argues, Karen, already bleeding, has to fight for her life.
David says he came home from work earlier than usual.