Casey Anthony's Father Blames Her For Caylee's Death

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Her mother, Cindy Anthony, also disclosed that Casey has a history of seizures during a Dr. Phil interview Tuesday.

Casey Anthony has yet to speak about her acquittal for the murder trial of 2-year-old daughter Caylee, who disappeared in 2008.

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But, in an interview with Dr. Phil host Phil McGraw on Tuesday, her parents Cindy and George are speaking out about their daughter's past and the trial, which ended with Casey being convicted on four charges of lying to police. 

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In the interview, George tells McGraw he can't be certain Casey, who lied about Caylee's disappearance for 31 days, didn't kill his granddaughter.

"The last one I saw Caylee with was Casey, but we didn't see her for all those days, all those weeks," he said, reports ABC News. Adding, "To me, in my mind, one and one adds up to two."

 He aslo said he isn't sure his daughter didn't drive around with Caylee's dead body in her trunk (which prosecutors said smelled of death during the trial.

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"Some parts of me do believe that she was possibly back there," he said.  

During the lengthy discussion, which will air in multiple parts, Cindy tells McGraw that her daughter has a history of seizures (citing instances in both 2007 and 2008), though she doesn't directly connect that to Caylee's murder, or Casey lying to authorities about her daughter's whereabouts after her 2008 disappearance. 

"I'm not making justification for [Casey's lies], but there's a cause for that," Cindy said. "You just don't have a grand mal seizure." 

The medical condition was not something Casey's attorney's addressed during the trial (though she was examined by doctors to establish whether or not she was mentally fit to stand trial). 

Casey is currently serving a year of probation somewhere in Florida for a separate conviction of check fraud.