Exactly one year ago, Casey Anthony was acquitted of murdering her 2-year-old daughter and disposing of her remains. Now, her lawyer, Joes Baez, is speaking out, revealing details about the case through his new book "Casey Anthony: The Inside Story."

Anthony thought that her father, who sexually abused her, was the father of her baby Caylee and killed her in order to cover up the evidence of his devious behavior, according to her lawyer. Baez first brought light to the sexual abuse during the bombshell opening statements made during her 2011 murder trial.

In Baez's new book, he provides background information about the molestations. "It all began when Casey was eight-years-old and her father came into her room and began to touch her inappropriately and it escalated ... She could be 14 years old....and go to school and play with the other kids as if nothing [had] happened," Baez said.

Not only was Anthony's father accused of sexually abusing her, but her brother, Lee Anthony as well. George Anthony denied the allegations as he made his testimony during the trail.  However, DNA testing during the case proved that neither of them was the father of her child Caylee.

In the book, Baez said that on the day of the alleged murder, Casey Anthony and her father were home alone. It was Anthony's father who noticed that Caylee was missing during the early hours of the morning of June 16. They immediately started franticly searching the house. After the indoor search was unsuccessful, George Anthony decided to take the search outside, to the above-ground pool, Baez said.

"As Casey came around the corner [of the pool] she saw George Anthony holding Caylee in his arms," the defense attorney told the jury, according to Huff Post. "She immediately grabbed Caylee and began to cry. Shortly thereafter, George began to yell at her: 'Look what you've done. Your mother will never forgive you and you will go to jail for child neglect for the rest of your frigging life.'"

However, during his testimony in court, George Anthony denied having any knowledge of his granddaughters death, stating "I would have done anything I could to save my granddaughter."

In his recently released book, Baez revealed his personal input on the case and remains convinced George Anthony knows a lot more than he has let on.

"George never saw himself as the bad guy. Instead, as is common with abusers, he saw himself as the victim of Casey's treachery," Baez wrote. 

Tags: casey anthony The Inside Story Joes Baez George Anthony Lee Anthony