The Orlando Sentinel said Tuesday prosecution documents show Anthony initially had considered giving away unborn Caylee, but her mother ultimately insisted she change her mind on the matter.

The adoption allegation came from Anthony's childhood friend, Kiomarie Torres Cruz, who also said in the documents Anthony may suffer from bipolar disorder.

Another of Anthony's friends, Amy Huizenga, alleges in the released documents the 22-year-old mother repeatedly brought the 3-year-old to adult parties and may have been behind Caylee's disappearance on July 15.

"I think something accidentally happened … Casey freaked out. I don't know how she solved that problem. But then created this story in her head," Huizenga is quoted as saying in the court papers.

The Sentinel said Anthony is already facing charges of child neglect and filing a false report with law enforcement.