Published: Aug 16, 2010 5:41 PM EDT
Updated: Aug 16, 2010 2:42 PM EDT

ORLANDO, Fla. (AP) - An attorney for Casey Anthony's parents has resigned from representing the Florida couple.

Attorney Brad Conway said Monday that he can no longer represent Cindy and George Anthony because he has become a witness to an inaccurate legal pleading in the case. The pleading was filed by Casey Anthony's attorneys.

Casey Anthony is charged with first-degree murder in the death of her 2-year-old daughter Caylee Marie Anthony. The child's remains were found in Orlando in late 2008, almost half a year after she was last seen.

Casey Anthony has pleaded not guilty and says a baby sitter kidnapped her daughter.