When Casey Anthony went on trial after being charged with murdering her 2-year-old daughter Caylee, the whole world waited anxiously to hear the verdict in this tragic case.

After an intense 6 week trial, Anthony was found not guilty of murdering her daughter, but questions remain and many people are uncertain that justice was served in this case.

Now, as part of a new documentary on the case, one of the jurors is speaking out about the controversial decision that everyone is still talking about 6 years later.

Russ Huekler was one of the alternate jurors for the case. He watched the whole trial alongside the other jurors, but was dismissed before they decided Anthony's fate.

The jurors took a lot of blame for their decision, and had to be escorted out of the courthouse under police protection. But Huekler claims the prosecution just didn't offer enough evidence to convict Anthony.

"I'm not saying Casey was innocent," he says in the new documentary. "The prosecution just didn't prove their case. They couldn't say how she died. They couldn't connect Casey to the murder."

Huekler's explanation lines up with others from people closely involved with the case. A juror who spoke to People magazine anonymously said almost the same thing, while Anthony's judge, Belvin Perry, agreed that she probably murdered her child by accident.

We may never know all the details of this case, but maybe something critical will be revealed when Casey Anthony: An American Murder Mystery airs next week on Discovery ID.

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