Casey Anthony Claimed Rape?

Revelations from psychiatrists who evaluated Anthony before her trial.
4:21 | 01/11/12

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Transcript for Casey Anthony Claimed Rape?
Since her acquittal on murder charges in the death of her daughter Caylee Casey Anthony. The mostly avoided the spotlight but tonight at tidal wave of new details has emerged. In the form of a report filed by psychiatrist who evaluated Anthony before her trial. The report describes the defense nagging suspicions and at least two disturbing accusations she makes here's ABC's Matt -- -- in the appears. And found you not guilty Casey Anthony murder trial was unquestionably sensation. But the 477. Pages of depositions of her psychologists. Horrible dynamite for the first time the testimony of two psychologist who met with the run multiple occasions reveal PC's biggest bombshell. That her father George Anthony to -- her two year old daughter Caylee in the family pool. Doctor Jeffrey -- are called she said I think he held her underwater maybe he was doing something to her he tried to covered up. She said that on Father's Day 2008. George Carey he he's lived and dripping body into her bedroom accusing Casey of foul play. According to whites he shouted look what you did look which you -- At trial the defense was always suggesting it might have been an accident now we hear that Casey Anthony is saying. It was my. I think he literally around her in the -- which seemed so many facets of Casey Anthony the party girl. The deal -- suspect in the jailhouse conversations with -- parent. Its. First. It's. The buttoned up defended but we never saw the inner mind and the torrent of accusations. By woman just weeks away from standing trial for murdering her own daughter one whose conception. Like her debt we now learn. With probably violent. A jailed Casey told white she was drunk at a party. That she blacked out and then. Was -- She believes that's when she was impregnated. By whom she still doesn't know the young woman so often photographed in various stages of the need donation. Telling her doctors she did party -- drink much. During those evaluations -- she had also speculated that it may have been her own father George Anthony who impregnated. Her it all began when Casey was eight years old and her father -- -- -- room. And he gets touched -- in April but there's a powerful incentive for person facing the death penalty to say -- -- Including. My father impregnated me. DNA tests later disprove -- paternity you ever sexually. Molested. Your daughter. -- and tonight in a statement George Anthony denied it again. And though she says her daughter had been conceived through rape either by her father or an unknown man. Casey told her psychologists. Should never contemplated abortion or adoption. And that once born. I loved her at first sight. And that the child was the most meaningful part of my life for three years so little of it seems to fit with the -- of evidence in this case. Hit by my grandfather did something caught my daughter's car today and it's not. And don't forget that -- and -- The defense had planned to use the psychologists. But never put them on the stand it would have been -- very risky. Four of the defense. To try to call a psychologist Stan merely weeks before her trial doctor Jeffrey dancing there said Casey seemed -- -- delusions murderous intent. -- -- We don't know whether she's a psychopath but we in the mental health professions also recognize. That psychopaths. Where what we call the mask. Of sanity. Eight nonchalance questioned again this video popped up that's the end of my first. Video probably -- another -- later on you'll bring. That's right -- really notes after four years a sensational trial 477. Pages of psychologists analysis. None of us really know. For Nightline I'm Matt -- in Miami.

This transcript has been automatically generated and may not be 100% accurate.

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