Verdict in Amanda Knox Retrial

After her original conviction was vacated, Italian courts once again take up her murder case.
3:00 | 01/30/14

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Transcript for Verdict in Amanda Knox Retrial
anxious wait for Amanda Knox. A verdict expected today in her latest murder trial in Florence, Italy. This will be the third verdict since her case began more than six years ago. Her original murder conviction was overturned but last year Italy's supreme court ordered this new trial. ABC's Neal Karlinsky has the story. Reporter: In what seems like a case of deja Vu just hours from now, Amanda Knox will once again hear the verdict of an Italian court once again undoubtedly holding her breath and praying the nightmare will end. If there's a verdict of conviction, they should respect the terms and deadline, this Italian criminal lawyer says, Italy can ask for extradition. But how could this happen? After being convicted of murdering her former roommate, Meredith Kercher in 2009 and serving four years in prison she was cleared after a stunning new trial found the original evidence unreliable, returning home to Seattle writing a book and telling all to Diane sawyer. Did you kill Meredith Kercher? No. Were you there that night? No. Reporter: But Italy's highest court overturned the acquittal and ordered a new trial, oddly this time Italian prosecutors completely changed their theory. In the first trial Knox was accused of killing Kercher during a drug-fueled erotic game. This time prosecutors said the murder was actually driven by a fight over a dirty apartment and an unflushed toilet. Through it all Knox now sporting a new short haircut at home in Seattle avoided the trial finishing her degree at the university of Washington and worrying about what's next. Her former boyfriend, sollecito is still on trial for murder and will be in court today. There is no evidence now and there never will be any evidence so until this matter is completely resolved and resolved favorably, it will remain understandably concerned. Reporter: Whatever the verdict today, incredibly, it won't be the end. The case can be appealed yet again to Italy's supreme court. For "Good morning America," Neal Karlinsky, ABC news, Seattle. And ABC's chief legal affairs anchor Dan Abrams here for the countdown to the verdict. And, of course, we heard from the attorney. There's going to be concern from her family. How worried should she be? Well, look, in Italy this is viewed as a close case. Remember, this appeals court is the same court, although not the same judge, et cetera, where she was found guilty. The supreme court heard it. They said, no, no, no, we're not abiding by that verdict. Go back, retry this case again and then let's talk. Meaning if she is convicted by this court, it will still go again to the supreme court but I guess the bigger point is that I think a lot of people in this country have assumed this case is over. It's done. Amanda Knox did her book tour. These out there. As far as the Italians are concerned this case is not over yet. So what happens if, indeed, the conviction is reinstated. Then back to the supreme court. If the supreme court affirmed it I think 24r8d be a request by Italy for extradition. You think they would, the supreme court would. I do. I think there's a very good chance that if the appeals court decides to convict, that the supreme court will uphold that conviction and that would mean that there would be an extradition fight. She would have some arguments here. She would say it's double jeopardy meaning wait a second I was acquitted already once. You can't retry me. The response to that would be, no, that was not a final decision. That was a decision pending an appeal. So there will be some interesting legal arguments to come if that happens. Would the U.S. Government be put in a difficult situation? I think it would be a very tough spot because, remember, they have to, you know, they have an extradition agreement with Italy. It's an interesting legal argument that's being made by Amanda Knox if she's convicted, but there will be so much public pressure, I think, to say, this is ridiculous, Amanda Knox is innocent, why are we doing in that they would be in a very tough spot. So this is going to get -- this could be get very interesting although none happens if she's not found guilt? And served many years in jail. Already, the jury is out later. Yes.

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

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