I believe she is guilty. And, the prosecutor failed to connect the dots. The defense did an excellent job of putting mud in the water and making the situation more complicated. The prosecutor behaved as if her guilt was apparent, instead of immediately shifting to address the defense's issues. They were caught with their pants down, with no return to the child abuse and swimming pool defenses.
They also could have added more charges for the jury to use instead of first degree murder and a death sentence. If you're going to sentence a young pretty woman to death, you better show the smoking gun in her hand.