Casey Anthony’s parents will finally speak out about what really happened to their granddaughter and reveal new information that could have changed the outcome of the case, it has been suggested. Hit the jump to read the rest of the story.

George and Cindy Anthony will give their first interview since the verdict in the trial of their daughter to Dr Phil on September 12.
In a promotional clip for the interview that has been released, the talk show host grills the grandparents of Caylee Anthony.

‘I want you to answer my questions, the truth once and for all,’ Dr McGraw tells Mr and Mrs Anthony in the video.
During the 30-second advert, George and Cindy Anthony are not heard speaking, but a series of clips showing the television host asking questions suggest that the interview will reveal new information about the case.
‘America’s never heard of this explanation before. Why have you sat on this information?’ Dr Phil is shown asking.
He goes on, ‘You know the truth don’t you?’
During the investigation into their granddaughter Caylee’s death, Mr and Mrs Anthony maintained their daughter’s innocence.
But on the first day of their daughter’s murder trial, the defence claimed that Caylee drowned in the Anthony’s pool and that George Anthony had molested Casey.
They argued that George had persuaded his daughter to cover up the accident.