Amanda Knox Amanda Knox

Convicted — and then acquitted — killer Amanda Knox could possibly face another conviction, after last month's ruling by the Italian Supreme Court.

The highest court ruled Knox's previous acquittal for the murder conviction of old roommate Meredith Kircher was suspended. Thus, a new trial will begin.

"If there needs to be a re-evaluation of looking into the facts, that's fine," Knox tells Diane Sawyer in an interview airing on ABC World News Tuesday at 10/9c. "Because facts are facts, and I'm not afraid of them."

She explains of the new judgment, "It was incredibly painful ... I felt like after crawling through a field of barbed wire and finally reaching what I thought was the end, it just turned out that it was the horizon. And I had another field of barbed wire that I had ahead of me to crawl through."

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Knox need not be present for the trial in Italy — and if she were to lose, the U.S. would likely not extradite her to Italy, legal experts tell ABC News.

Knox's memoir, Waiting to Be Heard, was released Tuesday, revealing details about Knox's ordeal and an unsent letter she had written to the victim's family. Knox will also appear on Good Morning America on Wednesday to promote her book.

Will you tune in for Knox's interviews? Will you read her memoir?