The defense trial in Caylee Anthony homicide case started off with explosive suggestions and revelations. It was revealed in court on Thursday that both Casey Anthony's brother and father had been DN-tested to rule out their paternity of the murdered toddler.

Starting off the defense trial, Casey's attorney made the shocking suggestion that either Lee Antony or George Anthony could have been the father of Casey's daughter, according to the Daily Mail.

But the judge warned the defense lawyer and wondered what his motivation was, in making an inference like this. You are not to ask questions that will lead to an inference... I'm not even going to venture a guess as to your motivation,' Judge Belvin Perry said. The judge also admonished the defense attorney and asked him to abide by norms on 'good faith' questions.

Later on, the court heard the witness saying that Lee Anthony's DN test proved he was not the father of Caylee. The defense lawyer did not ask the witness about the test result of George’s DNA test, leaving the jurors to guess the test was negative as well.

Casey Anthony is accused of murdering her daughter by applying chloroform first and sealing her mouth with duct tapes, looked away. Caylee's death took place in June 2008.

Casey Anthony denies the charges that she murdered her toddler daughter. She contends that Caylee drowned accidentally in the swimming pool. If she is found guilty of first degree murder, Casey Anthony could be sentenced to death by lethal injection.

He story is that she lied about Caylee's death because she was 'conditioned to lie'. She had also accused her father of sexually abusing her for years when she was a child, a charge George has denied in court.

The prosecution says Casey killed the little girl by suffocation and kept the dead body in the boot of her for several days. She then dumped the body in the woods near her parents' home.

Earlier in the week, her mother Cindy Anthony took the witness stand testified against her daughter for the third time during the trial and helped prosecution identity things that belonged to the Anthony household.