“You are not there to deduce what might have happened.”
Like hell you aren’t. Deductive reasoning is unavoidable, particularly in a criminal trial. Unfortuantely, a lack of deductive reasoning is a major problem in this country. One can’t suspend their deductive reasoning abilities at the courthouse door.
The State still has to prove each element of the CHARGE.
The FACTS that the jury decides are not "what really happened", they are "did the State prove 1, 2, 3...."
It does not matter if the jurors think Casey killed Caylee. What matters is, did the State of Florida prove, beyond a reasonable doubt, that the elements of the various charged offenses were true.