However, Eyewitness News has learned that, behind the scenes, the defense team sent 30 pages of documents to prosecutors. In those documents, Casey's lawyers argued that if Caylee is dead that it was "almost certainly a tragic accident."
The documents also said Caylee could've been poisoned by chloroform or she could have died while she was sedated. They said the cause of death could have been an unwitting overdose of a sedative.
The defense documents went on to describe Casey as troubled and possibly depressed. They said her behavior had been erratic ever since Caylee's birth and particularly in the months before the little girl's disappearance.
Also, the documents state that Casey's lack of emotion after Caylee's disappearance is proof that she is not normal and could possibly be suffering from mental or emotional stress.