ORLANDO, Fla. -

Juror No. 11, the elected foreman for the Casey Anthony murder trial jury, says the not-guilty verdict in the trial left him "with a feeling of disgust."

The juror, whose face was obscured and his name not revealed, chose to speak with Fox News' Greta Van Susteren.

The man told Van Susteren that it was the state's failure to prove the cause of Caylee's death that led to the acquittal.

"When I had to sign off on the verdict, the sheet that was given to me -- there was just a feeling of disgust that came over me knowing that my signature and her signature were going to be on the same sheet," the juror said.

Anthony does not sign the verdict sheets, only the foreman does.

In addition to the failure to prove cause of death, the jury also had problems with the first witness the state put on the stand, Anthony's father, George Anthony.

"There was a suspicion of him. That was a part of our conversation that we had, what I call the round-robin topics that we had during deliberations," the foreman said.

The defense tried to paint George Anthony as a child-molesting, body-dumping monster who concealed Caylee's accidental drowning -- allegations the Anthony family attorney vehemently denies.

The woman who sat next to the foreman during the trial, juror No. 12, quit her job and left the state. Her husband told NBC News that his wife feared backlash over the verdict.