Final answer:
The exact contents of the bag found with Caylee's body are not detailed in the provided information. The Casey Anthony trial sparked discussions on child abuse and neglect but did not specify the bag's contents in relation to Caylee.
Step-by-step explanation:
The discovery of Caylee's body was a significant part of the Casey Anthony trial, a case centered around allegations of murder against Casey Anthony, Caylee's mother. However, the information you've provided does not detail what was found in the bag related to Caylee's body. The trial was notable for its examination of child abuse and neglect in the United States. It appears that the information regarding the contents of the bag found with Caylee's body is not included in the referenced text, as the trial itself and the search of belongings under T.L.O. do not pertain to the specifics of what was found in Caylee's case.