Don't get me wrong, I do not believe the kidnap story either but this is what KC wanted everyone to believe, so why not plan around that story. KC claiming to have dropped KLee off w/ the nanny, child found wrapped in duct tape, not to mention the phone call KC supposedly got in July and she spoke with her daughter and she kept talking about a book. Which the book appears to be the same book that was at the crime scene and at the nursing home. Why not play around this theory?
I just think that she had help after the fact, not that someone helped her murder her child. KC had to come up with a good story to throw suspicions off of her.