The State can prove that Caylee was unaccounted for during a period of 31 days before LE was notified. They will show how KC spent those days through the testimony of friends, family, photos, videos and the jury will see a woman who is not the least concerned about her child. The State will tell the jury about KC's lies and the wild goose chases she promoted beginning the night that CA called 911. The jury will see the jailhouse videos where she laughs and giggles and refuses to tell anyone anything except more ridiculous, complicated and convoluted lies. This evidence will have a great impact on the jury.
The State will show that KC had Caylee's body secreted in her trunk and apparently drove around for a few days with the baby's body rotting in a garbage bag as she partied it up with her new beau and his friends. They will see the Blockbuster video taken only hours after Caylee's death. The jury will have no problem deciding that KC knew the baby was dead in her trunk and that her dead baby didn't interfere with her enjoyment of life.
Then the State will show the site where Caylee was dumped which is a 3 minute walk at most from the A home. They will show that KC had no emotion whatsoever as searches were taking place all over Orlando but fell to her knees and needed a sedative when she learned of the search find in the swamp behind her neighborhood. The jig was up. The jury will catch on to that too.
IF there is no way to establish the COD, the jury will be tasked to determine if the State has proven that KC intentionally killed Caylee. For Baez to try the "someone else did it and KC was scared to tell", he must convince the jury that she is still so scared that she will not talk and would rather go to jail for life or even death row. Or he must try to convince the jury that it was an accident covered up by a panicked young mother. The problem here is that the body was in her car and any fear for her daughter's safety was moot and she has yet to describe the accident and her response to it. Neither of these scenarios establish "reasonable doubt".
It is not reasonable to believe in a phantom Nanny any more than it is reasonable to believe that Caylee committed suicide. It is not reasonable to to believe that it was an accident without any evidence of same from the mother's own mouth and she will never admit to anything.
The jury may have to deal with the fact that no one knows exactly how Caylee was killed, but there will be no doubt that the mother knew about it and went to elaborate means to keep the facts hidden from everyone. Jurors do not leave their logic and common sense at the courthouse steps and their combined years of living experiences will lead them to a murder 1 conviction.
It is KC's own fault. She could have claimed accidental death from DAY 1, but chose another route. Why? Because the evidence at the time showed that it was not an accident at all. She was just plain lucky that the body was not found until it was reduced to scattered bones and we do not reward those who manage to hide their crimes well and long enough to destroy evidence.
I have no wiggle room here, she will be found guilty of murder 1 and will get a LWOP or DP. She did it and will see the harsh reality of justice.
