Millionaire's Girlfriend Takes Stand in DUI Retrial

"Adopted" girlfriend reveals new details that did not come out in the polo mogul's first trial.
4:04 | 10/14/14

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Transcript for Millionaire's Girlfriend Takes Stand in DUI Retrial
Begin with the sensational retrial of John Goodman. New details that didn't come out in the first trial for manslaughter. The girlfriend is on the stand there. Reporter: Just when prosecutors thought they heard everying an until mul multi-millionaire John good minnesogoodman Rees retrial, there's a new one. He could barely move. Reporter: He tried to legally adopt her? 2011 to protect his wealth, claiming she took him to the hospital the night after he crashed his Bentley into 23-year-old Scott Wilson's car and allegedly fled. Hutchins, like the defense, claiming Goodman wasn't drunk during the call. My car, I pulled out and I was at the stop sign and then I stopped and pulled out in front. Where am I? Reporter: He was disoriented from the crash. Prosecutors sceptical. Pressing her on the name of the hospital she took him to. I'm not positive. Reporter: And asking why she never mentioned it before in three previous sworn statements. That's what I remember. That's what you remember, or is that what happened? That's what I remember today. Reporter: Hutchins also testified that Goodman only began drinking after the fatal crash. We were advised not to talk about it. Reporter: Something she failed to mention in the first sensational trial in which he was sentenced to 16 years, only to have the sentence overturned because of juror misconduct. A bystander who arrived on the scene who was unable to save Wilson. Who didn't die from the impact, but drowned when the Bentley plowed the car into a canal. Why go in? Someone was in there. Do you feel bad that you didn't? Reporter: Goodman has again pleaded not guilty. For "Good morning America," Matt Gutman, ABC news, Miami. And Dan Abrams is here with more. She remembers things now that she didn't before. There was another trial before. Maybe she was questioned before and it didn't come up. There was a whole trial before where his future was at stake and she doesn't provide this crucial piece of information? Why is it so crucial? It's the heart of the defense. He wasn't drunk, he was so disoriented, he couldn't tell about the surroundings, and now she's offering a crucial piece of evidence that she didn't mention in the first trial? It's clear the prosecutors are skeptical. What can they do that she's lying. They could charge her with perjury. Hard to prove. It is hard to prove. And I'm not going to say they're going to charge her with that. But with the prosecutors become convinced that's the case, that would be the remedy for prosecutors in the case. That's the big card. There's all kinds of funny business with the jury in the case. In the first case, it was thrown out because of juror misconduct. And one of the jurors was arrested for googling something. They're at a hotel, no one is supposed to know where they are. One of the jurors reports to the judge that someone is yelling at her about the juror who was arrested for misconduct. And she's not supposed to know about it. She is saying she doesn't know what they're talking about. They aren't supposed to know there was another trial. It's a lightning rod for controversy. Could that lead to mistrial? The judge is not letting the juror go. Didn't talk about it with other jurors and seems confused. Not to know what it relates to. It has to impact the trial. The first remedy is to dismiss the juror before a mistrial. Not there yet. Thanks. Now to the incredible story from the partners at Yahoo!

This transcript has been automatically generated and may not be 100% accurate.

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