According to one juror - who spoke exclusively to ABC News - there were conflicting views during deliberations. The first vote in the jury room was 10-2 for not guilty on first degree murder. After more than 10 hours, the decision was unanimous.
Jennifer Ford was juror number three, a 32 year old training to become a nurse.
She told ABC'S Terry Moran the reason the jury acquitted Anthony was because the prosecution didn't prove its case.
"How can you punish someone for something if you don't know what they did?" Ford said.
Asked if the prosecution was able to provide a solid picture, Ford responded, "They didn't even paint a picture for me to consider.
Ford said the biggest question never answered: just how did Caylee Anthony die?
"If you're going to charge someone with murder, don't you have to know how they killed someone or why they might have killed them? Where, when, why, how - these are important questions. They were not answered," she said.
Wednesday on "The View," prosecutor Jeff Ashton agreed, but defended his team's performance.
"We put on everything that an investigation -a really thorough investigation over three years - produced," Ashton said.
In an exclusive interview with ABC's Barbara Walters, defense attorney Jose Baez recalled the moment the verdict was read.
"Really the happiest moment came after the first not guilty, because I knew I had saved her life," he said. "Grabbed her hand and I held it."
As for Casey Anthony, who didn't report her daughter missing for 31 days, she carried on with a partying lifestyle.
"The behavior is very bad, but bad behavior is not enough to prove a crime," Ford said.
Anthony was found guilty on four counts of lying to law enforcement. She admitted to making up stories and inventing suspects in her daughter's disappearance, such as "Zanny the Nanny," who Anthony identified as Zenaida Fernandez-Gonzalez.
Those lies have resulted in a defamation lawsuit brought forward by the real Zenaida Fernandez Gonzalez.
Anthony could also face a civil suit and be required by law to answer questions about Caylee Anthony's death.
"If she's deposed, she cannot plead the Fifth [Amendment], she would have to answer questions," said Michelle Zierler of the New York School of Law. "It would be interesting."
The Associated Press contributed to this report.