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Amanda Knox talks to members of the media outside her mother's home, Friday, March 27, 2015, in Seattle. Italy's highest court overturned the murder conviction against Knox and her ex-boyfriend Friday over the 2007 slaying of Knox's roommate, bringing to a definitive end the high-profile case. (AP Photo/Ted S. Warren) ( Italy Knox )

Amanda Knox talks to reporters outside her mother's home, Friday, March 27, 2015, in Seattle. Earlier in the day, Italy's highest court overturned the murder conviction against Knox and her ex-boyfriend over the 2007 slaying of Knox's roommate in Italy. (AP Photo/Ted S. Warren) ( Italy Knox )

Raffaele Sollecito, right, leaves Italy's highest court building, in Rome, Friday, March 27, 2015. American Amanda Knox and her Italian ex-boyfriend Sollecito expect to learn their fate Friday when Italy's highest court hears their appeal of their guilty verdicts in the brutal 2007 murder of Knox's British roommate Meredith Kercher. (AP Photo/Riccardo De Luca ) ( APTOPIX Italy Knox Trial )

SEATTLE, WA - MARCH 27: Amanda Knox speaks to the media during a brief press conference in front of her parents' home March 27, 2015 in Seattle, Washington. Knox and Raffaele Sollecito have been acquitted by Italy's highest court in the murder of British student Meredith Kercher, who was killed in her bedroom on November 1, 2007 in Perugia. Standing with Knox are her fiance Colin Sutherland and mother, Edda Mellas. (Photo by Stephen Brashear/Getty Images) ( 84524506 )

SEATTLE, WA - MARCH 27: Amanda Knox speaks to the media during a brief press conference in front of her parents' home March 27, 2015 in Seattle, Washington. Knox and Raffaele Sollecito have been acquitted by Italy's highest court in the murder of British student Meredith Kercher, who was killed in her bedroom on November 1, 2007 in Perugia. (Photo by Stephen Brashear/Getty Images) ( 84524508 )

The Kercher family's lawyer Francesco Maresca talks to journalists as he leaves Italy's highest court building, in Rome, on 27 March 2015. Italy's Supreme Court has overturned the murder conviction against Amanda Knox and her ex-boyfriend Raffaele Sollecito. AFP PHOTO / TIZIANA FABI (Photo credit should read TIZIANA FABI/AFP/Getty Images) ( Par8132443 )

Amanda Knox's lawyer Carlo Dalla Vedova talks to journalists as he leaves Italy's highest court building, in Rome, on 27 March 2015. Italy's Supreme Court has overturned the murder conviction against Amanda Knox and her ex-boyfriend Raffaele Sollecito. AFP PHOTO / TIZIANA FABI (Photo credit should read TIZIANA FABI/AFP/Getty Images) ( Par8132448 )

Amanda Knox, second from left, walks with family members and her fiance, Colin Sutherland, left, as she prepares to talk to the media outside her mother's home, Friday, March 27, 2015, in Seattle. Italy's highest court overturned the murder conviction against Knox and her ex-boyfriend Friday over the 2007 slaying of Knox's roommate, bringing to a definitive end the high-profile case. (AP Photo/Ted S. Warren) ( Italy Knox )

Amanda Knox, center, stands with her mother, Edda Mellas, right, and her fiance, Colin Sutherland, left, as she talks to the media outside Mellas' home, Friday, March 27, 2015, in Seattle. Italy's highest court overturned the murder conviction against Knox and her ex-boyfriend Friday over the 2007 slaying of Knox's roommate, bringing to a definitive end the high-profile case. (AP Photo/Ted S. Warren) ( Italy Knox )

Amanda Knox's father, Curt Knox, turns toward members of the media as he leaves the home of Amanda Knox's mother, Friday, March 27, 2015, in Seattle. Italy's highest court overturned the murder conviction against Knox and her ex-boyfriend Friday over the 2007 slaying of Knox's roommate, bringing to a definitive end the high-profile case that captivated trial-watchers on both sides of the Atlantic. (AP Photo/Elaine Thompson) ( Italy Knox )

Amanda Knox talks on a phone in the backyard of her mother's house Friday, March 27, 2015, in Seattle. Italy's highest court overturned the murder conviction against Knox and her ex-boyfriend Friday over the 2007 slaying of Knox's roommate, bringing to a definitive end the high-profile case that captivated trial-watchers on both sides of the Atlantic. (AP Photo/Ted S. Warren) ( APTOPIX Italy Knox )

Amanda Knox talks on a phone in the backyard of her mother's house Friday, March 27, 2015, in Seattle. Italy's highest court overturned the murder conviction against Knox and her ex-boyfriend Friday over the 2007 slaying of Knox's roommate, bringing to a definitive end the high-profile case that captivated trial-watchers on both sides of the Atlantic. (AP Photo/Ted S. Warren) ( APTOPIX Italy Knox )

This image released by NBC shows Amanda Knox during an interview on the "Today" show, Friday, Sept. 20, 2013 in New York. Knox defended her decision not to return to Italy for a new appeals trial over the 2007 killing of her British roommate, even as she acknowledged that "everything is at stake," insisting she is innocent. In March, Italy's supreme court ordered a new trial for Knox and her former Italian boyfriend. An appeals court in 2011 had acquitted both, overturning convictions by a lower court. Italian law cannot compel Knox to return for the new legal proceeding. (AP Photo/NBC, Peter Kramer) ( Amanda Knox )

This is an undated file photo released by the Italian Police of 22-year-old murdered British university student Meredith Kercher, (AP Photo/Italian Police, File) ( Italy Student Slain )

Raffaele Sollecito is flanked by his stepmother Mara Papagni, left, and his aunt Sara Achille, right, as he leaves after attending the final hearing before the third court verdict for the murder of British student Meredith Kercher, in Florence, Italy, Thursday, Jan. 30, 2014. The first two trials produced flip-flop verdicts of guilty then innocent for Kercher former roommate, American student Amanda Knox, who is not attending the hearing, and her former Italian boyfriend, Raffaele Sollecito, and the case has produced harshly clashing versions of events. A Florence appeals panel designated by Italy's supreme court to address issues it raised about the acquittal is set to deliberate Thursday, with a verdict expected later in the day. (AP Photo/Antonio Calanni) ( Italy Knox Trial )

Appeals Court Judge Alessandro Nencini, center, reads out the verdict for the murder of British student Meredith Kercher, in Florence, Italy, Thursday, Jan. 30, 2014. An appeals court in Florence upheld the convictions of U.S. student Amanda Knox and her ex-boyfriend for the 2007 murder of her British roommate. Knox was sentenced to 28 1/2 years in prison, raising the specter of a long legal battle over her extradition. After nearly 12 hours of deliberation Thursday the court reinstated the guilty verdict first handed down against Knox and Raffaele Sollecito in 2009. Writing above reads in Italian "The Law is Equal for All." (AP Photo/Fabrizio Giovannozzi) ( Italy Knox Trial )

A woman believed to be Amanda Knox, center left, is hidden under a jacket while being escorted from her mother's home to a car by family members Thursday, Jan. 30, 2014, in Seattle. Amanda Knox says she is frightened and saddened by her "unjust" murder conviction in the death of her British roommate Meredith Kercher. Knox's lawyers have vowed to appeal to Italy's highest court. In a statement issued from Seattle on Thursday after her conviction was upheld, Knox blamed overzealous prosecutors and a "prejudiced and narrow-minded investigation" for what she called a perversion of justice and wrongful conviction. (AP Photo) ( Italy Knox Trial )

Meredith Kercher's brother Lyle, left, and sister Stephanie wait for the reading of the verdict for the murder of the British student in Florence, Italy, Thursday, Jan. 30, 2014. An appeals court in Florence upheld the convictions of U.S. student Amanda Knox and her ex-boyfriend for the 2007 murder of her British roommate. Knox was sentenced to 28 1/2 years in prison, raising the specter of a long legal battle over her extradition. After nearly 12 hours of deliberation Thursday the court reinstated the guilty verdict first handed down against Knox and Raffaele Sollecito in 2009. (AP Photo/Fabrizio Giovannozzi) ( Italy Knox Trial )

A view of the house with sealed windows where British student Meredith Kercher was found dead in November 2007, on Friday, March, 20, 2009. (AP Photo/Stefano Medici) ( ITALY STUDENT SLAIN )

A woman believed to be Amanda Knox, center, is hidden under a jacket while being escorted from her mother's home to a car by family members , Thursday, Jan. 30, 2014, in Seattle. Amanda Knox says she is frightened and saddened by her "unjust" murder conviction in the death of her British roommate Meredith Kercher. Knox's lawyers have vowed to appeal to Italy's highest court. In a statement issued from Seattle on Thursday after her conviction was upheld, Knox blamed overzealous prosecutors and a "prejudiced and narrow-minded investigation" for what she called a perversion of justice and wrongful conviction. (AP Photo) ( Italy Knox Trial )

US murder suspect Amanda Knox talks to her lawyers in a courtroom during a hearing, in Perugia, Italy, Saturday, March 14, 2009. (AP Photo/Stefano Medici) ( ITALY STUDENT SLAIN )

US murder suspect Amanda Knox smiles prior to the start of a hearing in the Meredith Kercher murder trial, in Perugia, Italy, Saturday, July 4, 2009. Knox and her former Italian boyfriend, Raffaele Sollecito, are on trial for the murder of Knox's British roommate, student Meredith Kercher, found dead in the house they shared on Nov. 2007. (AP Photo/Stefano Medici) ( Italy Student Slain )

Edda Mellas, right, the mother of U.S. student Amanda Marie Knox - who is suspected in the murder of her British apartment mate -, is approached with her partner by journalists outside the jail where her daughter is held, in Perugia central Italy, Wednesday Nov. 14, 2007. (AP Photo/Leonetto Medici) ( ITALY BRITISH STUDENT SLAIN )

U.S. murder suspect Amanda Knox reacts during a defence hearing by her lawyer Carlo Dalla Vedova at the court in Perugia, Italy, Tuesday, Dec.1, 2009. (AP Photo/Luca Bruno) ( ITALY STUDENT SLAIN )

Amanda Knox smiles to her lawyer Luciano Ghirga as she arrives at Perugia's court, Italy, Friday, Jan. 16, 2009. Knox, an American college student from Seattle and her Italian former boyfriend Raffaele Sollecito are accused of sexually assaulting and murdering her roommate, Meredith Kercher, in a slaying that shocked Italy. (AP Photo/Alessandra Tarantino) ( ITALY STUDENT SLAIN )

Raffaele Sollecito, center, is escorted by Penitentiary guards arrives at Perugia's court, Italy, Friday, Jan. 16, 2009. (AP Photo/Alessandra Tarantino) ( ITALY STUDENT SLAIN )

A view of the house where foreign university students Amanda Knox and Meredith Kercher lived, in Perugia, Italy, Friday, Feb. 6, 2009. Knox, an American college student from Seattle, and her Italian former boyfriend Raffaele Sollecito, are charged with murder and sexual violence in the slaying of Meredith Kercher, who was found stabbed to death Nov. 2, 2007, in this apartment she shared with Knox in Perugia. Knox and Sollecito deny any wrongdoing. (AP Photo/Gregorio Borgia) ( ITALY STUDENT SLAIN )

US murder suspect Amanda Knox is escorted by penitentiary police officers as she arrives for a hearing in the Meredith Kercher murder trial, in Perugia, Italy, Friday, May 8, 2009. (AP Photo/Stefano Medici) ( ITALY STUDENT SLAIN )

Deanna Knox, left, and Edda Mellas, respectively sister and mother of U.S. murder suspect Amanda Knox, attend a hearing in the Meredith Kercher murder trial, in Perugia, Italy, Monday, July, 6, 2009. (AP Photo/Stefano Medici) ( Italy Student Slain )

US murder suspect Amanda Knox looks on during a hearing in the Meredith Kercher murder trial, in Perugia, Italy, Friday May 29, 2009. (AP Photo/Stefano Medici) ( ITALY STUDENT SLAIN )

Curt Knox, father of US murder suspect Amanda Knox, talks to media before the start of a hearing in the Meredith Kercher murder trial, in Perugia, Italy, Saturday, June 13, 2009. (AP Photo/Stefano Medici) ( ITALY SLAIN STUDENT )

From left, Stephanie Kercher, sister, right, and Arline Kercher, mother of slain British student Meredith Kercher walk outside an hotel at the end of a press conference in Perugia, Italy, Saturday, Dec. 5, 2009. The family of Meredith Kercher said they were pleased with the murder conviction of American student Amanda Knox but said there was no sense of celebration. A jury in Italy convicted Amanda Knox of murdering her British roommate Meredith Kercher and sentenced her to 26 years in prison shortly after midnight Saturday. Her Italian ex-boyfriend Raffaele Sollecito was also convicted and sentenced to 25 years. (AP Photo/Luca Bruno) ( Italy Student Slain )

U.S. murder suspect Amanda Knox looks on during a hearing at Perugia's court, Italy, Saturday, Nov. 21, 2009. (AP Photo/Alessandra Tarantino) ( ITALY STUDENT SLAIN )

From left, Stephanie Kercher, sister, John Kercher, brother, and Lyle Kercher, brother of slain British student Meredith Kercher meet the journalists during a press conference in Perugia, Italy, Saturday, Dec. 5, 2009. A jury in Italy convicted Amanda Knox of murdering her British roommate Meredith Kercher and sentenced her to 26 years in prison. The court also convicted Knox's co-defendant and former boyfriend, Italian Raffaele Sollecito, and gave him a 25-year jail. (AP Photo/Pier Paolo Cito) ( Italy Student Slain )

From left, Amanda Knox's sister Deanna, her mother Edda Mellas, her sisters, Ashley and Delaney, and Amanda's father Curt, leave the jail in the outskirts of Perugia, Italy, were Amanda is detained, Saturday, Dec. 5, 2009. A jury in Italy convicted American college student Amanda Knox of murdering her British roommate Meredith Kercher and sentenced her to 26 years in prison. Her Italian ex-boyfriend Raffaele Sollecito was also convicted and sentenced to 25 years. (AP Photo/Pier Paolo Cito) ( Italy Student Slain )

Stephanie Kercher, sister, right, and John Kercher, father of slain British student Meredith Kercher meet the journalists during a press conference in Perugia, Italy, Saturday, Dec. 5, 2009. A jury in Italy convicted Amanda Knox of murdering her British roommate Meredith Kercher and sentenced her to 26 years in prison. The court also convicted Knox's co-defendant and former boyfriend, Italian Raffaele Sollecito, and gave him a 25-year jail. (AP Photo/Pier Paolo Cito) ( Italy Student Slain )

Members of the media take photographs of US murder suspect Amanda Knox, second from left in the background, during a hearing in her appeals trial in the murder of her British roommate Meredith Kercher, in Perugia's courthouse, Italy, Wednesday, Nov. 24, 2010. (AP Photo/Gregorio Borgia) ( Italy Knox )

This April 9, 2013 photo released by ABC shows Amanda Knox during the taping of an interview with ABC News' Diane Sawyer in New York. (AP Photo/ABC, Ida Mae Astute) ( Knox Interview )

This photo taken Friday Nov. 2, 2007, and made available on Thursday Nov. 8, 2007 shows Amanda Marie Knox, left, and Raffaele Sollecito, looking on outside the rented house where 21-year-old British student Meredith Kercher was found dead Friday, in Perugia, Italy. (AP Photo/Stefano Medici) ( Italy Student Slain )

Convicted US student Amanda Knox arrives for a hearing in her appeals trial, at Perugia's courthouse, Italy, Saturday, Dec. 18, 2010. Last year, Knox was convicted and sentenced to 26 years in prison for the murder of her British roommate Meredith Kercher. (AP Photo/Alessandra Tarantino) ( Italy Knox )

Murder suspect Raffaele Sollecito is escorted by Italian penitentiary police officers as he leaves Perugia's court after a hearing, central Italy, Friday Sept. 26, 2008. (AP Photo/Pier Paolo Cito) ( Italy Student Slain )

In this Sept. 26, 2008 file photo, American murder suspect Amanda Knox is escorted by Italian penitentiary police officers to Perugia's court at the end of a hearing, central Italy. (AP Photo/Pier Paolo Cito, files) ( Italy Student Slain )

A 2 image combo shows Amanda Knox entering the Perugia court in these May 21, 2011, left, and Feb. 14, 2009 file photos. Two years ago, as she waited to know whether she'd be found guilty of murdering her British roommate, Amanda Knox was so confident she thought she'd be flying home within hours. She never did. Still behind bars, still waiting for a verdict, this time by an appeals court, the American is a changed woman, family and friends say, more mature, more wary of people around her, increasingly anxious as the moment of truth approaches. The transformation is apparent from the outside. Gone is the Beatles sweater, the confident demeanor, the irreverent smile. Now 24, Knox is conservatively dressed, pale and thinner. (AP Photo/Stefano Medici/Files) ( Italy Knox )

This undated photo provided by HarperCollins shows the cover design of "Waiting to be Heard". Amanda Knox's upcoming memoir has a title, a cover design and a new publication date. HarperCollins announced Wednesday, Nov. 28, 2012 that the book is titled "Waiting to be Heard." It will come out April 30, two months later than originally scheduled. The date was changed out of deference to the court in Italy that scheduled a March 25 hearing for the prosecution's appeal of the former exchange student's acquittal in the 2007 murder of her British roommate. (AP Photo/HarperCollins) ( Books-Amanda Knox )