A woman inmate who befriended accused murderer Casey Anthony, 22, in jail says Anthony told her she would "knock out" her 2-year-old daughter, Caylee, so she could go out at night.

She said Anthony said she regretted having a child so early in life, and gave three different versions of the events surrounding Caylee's “disappearance.”

Another inmate told investigators that Anthony said she used chloroform sedate Caylee. Investigators found traces of chloroform in the trunk of a car that belonged to Casey Anthony after Caylee disappeared in June 2008.

Caylee's decomposed body was found six months later, in December in a trash bag and wrapped in a blanket in a vacant lot near the home of Anthony's parents.

Anthony was released on $500,000 bail, posted by a self styled celebrity bounty hunter to help find Caylee’s body. Bail was revoked and she is charged with first degree murder and held in jail pending trial.

Anthony has pleaded not guilty to a charge of first degree murder and a June, 2010 trial date is set.