The latest revelation from Amanda Knox's long-awaited memoir, Waiting To Be Heard, concerns a secret letter to the family of Meredith Kercher that she reportedly wrote in prison.
According to the Sunday People, Knox, 25, penned the note just before her murder conviction was overturned in 2011.
The letter reportedly reads 'I'm sorry for your loss' and mentions the friendship between Knox and Kercher, the tragic British student who was found dead in 2007.
However, on the advice of her lawyers, the letter was never sent.
Her side: Amanda Knox speaks to Diane Sawyer during a taped interview with ABC News due to be aired on April 30
As reported by the Sunday People, the letter, that Knox wrote in jail while awaiting an appeal, reads: 'I'm not the one who killed your daughter and sister.
'I think about her every day. In the relatively brief time that Meredith was part of my life she was always kind to me. I can only attempt to imagine the extent of your grief.'
The note was never posted as Knox's lawyers advised her that it could be used by the prosecution to suggest that she felt guilty or been seen as a plea for sympathy.
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The letter appears in Knox's book that will be published on April 30. It was reported by the New York Times that she received close to $4 million for the memoir.
Knox and ex-boyfriend, Raffaele Sollecito, 29, were convicted of Kercher's murder in 2009 but this decision was reversed two years later.
Last month, an Italian court overturned the acquittal and the Seattle woman may now face a retrial.
Publicity: Amanda Knox told People Magazine, in an interview published this week, that she hopes Meredith Kercher's family reads her memoir because having them believe she is a killer is 'painful'
Knox wants Kercher's family to read the new memoir because it is 'painful' that they still believe her to be the young woman's killer.
Miss Knox made the revelations during an interview with People Magazine ahead of the release of her highly-anticipated book, Waiting To Be Heard.
Speaking from her parents' home in Seattle, the 25-year-old student said she is keen to change the public's perception from how she was portrayed during the high profile murder case, as a sexually promiscuous young woman nicknamed 'Foxy Knoxy'.
Knox also spoke about what life has been like since she was acquitted of her British flatmate's murder in Perugia, Italy in 2007 after spending four years in an Italian prison.
Knox says she wrote the book, due to be published on April 30, in order to 'reclaim her identity'.
Published: Amanda Knox, who was acquitted of murder in 2011, is releasing her memoir on April 30
Of Miss Kercher's parents, she said: 'I've never approached them, for legal reasons and because I worry about imposing on them in their grief.
'But my understanding is that her father thinks I'm still the killer of his daughter, and that's painful. I really hope they read my book.'
Knox spent four years in a prison cell in Perugia after being convicted of Miss Kercher's murder alongside her Italian boyfriend Raffaele Solecito. The couple are no longer together but remain close.
Their convictions were overturned in October 2011 due to lack of evidence. However, both now face a retrial after a demand by Italy's highest court on March 26 this year.
Knox, who now studies creative writing at University of Washington and has been dating musician James Terrano for 18 months, also revealed the slow steps with which she has been rebuilding her life following her release.
She told People that along with graduating from college, she plans to go on vacation with a woman named Laura, a friend and former cellmate.
Knox also explained her difficulty at reintegrating into family life following four years in prison.
She claims that at times she contemplated suicide in jail and was sexually harassed by prison guards.
However there have been lighter moments following her ordeal.
The 25-year-old recalls being bewildered by her new iPhone and grappling with how Twitter works.
She also remembered a night spent watching Letterman with her family when the host did a 'Top 10 most probably Amanda Knox quotes'. One was 'Who is Justin Bieber?'
Knox told People: 'I remember looking at my family and I was like, uh, ''Who IS Justin Bieber?''
'Everyone died laughing.'
Knox reportedly received $4million for her book, according to the New York Times.
Life experience: Amanda Knox with Diane Sawyer about her memoir which documents her four years in an Italian prison after she was convicted of the murder of her British roommate Meredith Kercher. Knox's conviction was overturned in October 2011
In an advance copy of Knox's memoir, she also revealed details about her life as a foreign exchange student in Italy in 2007.
She said that she had hoped for a life-affirming experience but also said that while living in her Perugia apartment, ‘marijuana was as common as pasta'.
The memoir, published by HarperCollins, contains first-person accounts from the trial and its immediate aftermath.
Miss Knox discussed how she is dealing with her emotions in an interview with Diane Sawyer on ABC News, which will be aired on April 30.
She revealed: 'Things creep up on me and I'm overwhelmed by the feeling of helplessness, desperation and fear to even hope. My heart races and it leaves me paralyzed until I can breathe it away.'
In her memoir, she writes: 'When Meredith was murdered and I was arrested, it was so shocking. It was paralyzing, Everything toppled.'
The Seattle-native also writes that being naïve and proud contributed to her initial guilty conviction, judging herself for acting ‘like a lost, pathetic child’ when dealing with Italian authorities.
Innocent: U.S. citizen Amanda Knox, left, and her then-boyfriend Raffaele Sollecito, of Italy, outside the rented house where 21-year-old British student Meredith Kercher was found dead (file photo)
Release: Knox, pictured right at Rome's airport, gave an emotional press conference once she got back home in Washington, left, a day after she was acquitted of murder in October 2011
She also denied that she was performing cartwheels outside the police station after she was arrested, an infamous action that was widely reported at the time of the trial.
According to the book, the police interrogated Miss Knox for hours and would slap her on the back of her head. Italian police are taking legal action against her parents for making similar allegations.
According to the Times, HarperCollins publishers have described Knox as intelligent and charming, and did not shy away from unsavory facts.
In fact, Knox is reported to want to use this platform to confront the rumors, myths, and confusion associated with the case that enthralled the world.
She writes that the memoir is about setting the record straight.
Capture: Knox, pictured in 2010 being escorted out of court by Italian law enforcement officials
During the murder trial for 21-year-old Kercher, the Italian prosecution condemned Knox as a ‘she devil’ and used passages from Knox’s journal where she wrote she would ‘kill for a pizza.'
Brutal murder: Meredith Kercher was killed in her apartment on November 1, 2007
Miss Knox writes that the prosecution took these entries out of context, saying that it was merely ‘gallow humor.’
She also claims that she was reading a Harry Potter book, smoking marijuana and watching a film at her boyfriend's flat on the night of the murder.
Her time behind bars at Capanne Prison, outside of Perugia, was extremely difficult for Knox, who writes that she was taunted by her cell-mates for being a snob, noticing she spent most of her time behind bars reading and writing letters.
She was only allowed outside for one hour a day.
She writes: 'My guard wanted to know who I had sex with, how I like it - and if I'd do it with him.'
ABC News notes that all throughout the 484-page memoir, Knox professes her innocence.
The book will be published in the U.S., but not in the U.K., amid fears that the memoir could further complicate the retrial that Italy’s highest court dramatically ruled last month.
Miss Kercher, a 21-year-old from Leeds University, was found semi-naked and with her throat cut in a house she shared with Knox in Perugia, Italy, in November 2007.
Miss Knox became 'Foxy Knoxy' and received the brunt of the attention as she shopped for underwear after the killing and turned cartwheels in front of investigators.
Sollecito tells how he met Knox at a classical music concert in Perugia before going on to spend the night with her.
Within a week, Miss Kercher was murdered and the couple fell instantly under the spotlight of suspicion.
In the hours after the gruesome murder scene was discovered, the duo was notoriously photographed kissing and cuddling in the street outside while police investigated.
Italian authorities later described Sollecito’s behavior ass ‘odd’, and acknowledged the two had no real alibi 'except each other.'
Next to normal: Since being acquitted, Knox has been studying creative writing at a Washington state university
They eventually told police that they had been smoking marijuana and having sex in Sollecito's apartment before falling asleep.
The pair was imprisoned days after the November 1, 2007 death of Kercher in the central Italian city. Both would remain there for nearly four years.
An appeals court overturned their conviction and freed them last fall, issuing a 143-page opinion that blasted the utter lack of evidence against them.
Rudy Guede, a petty criminal who was convicted separately, remains imprisoned and is serving a 16-year-sentence.
Police found their behavior 'odd' and he acknowledged they had no 'real alibi the night of November 1 except each other.'
Honor bound: Sollecito's book was released last September
The couple were arrested several days after Kercher's death and later convicted in proceedings that made headlines around the world.
Prosecutors portrayed the case as a drug-fuelled sexual assault, and Knox and Sollecito were sentenced to 26 years and 25 years, respectively.
The appeals court found the prosecution's theory to be unsupported by any evidence.
Prosecutors have appealed the acquittal, and Italy's highest court will hear their arguments next March.
Sollecito met Knox at a classical music concert at the Universita per Stranieri, the University for Foreigners, on October 25, 2007 - a week before Kercher's death.
He asked for her number, and she told him to come by the bar where she'd be working later that night.
At the end of the shift, he writes in his new book, they took a walk, held hands and kissed.
She accepted an invitation to come back to his apartment and spent the night.
Soon the couple became inseparable. She began spending the nights at his apartment. They shopped for groceries together, and took a sightseeing day trip to Assisi.
'A shocking decision' Amanda Knox's attorney speaks after...
THE CASE THAT CAPTURED THE WORLD'S ATTENTION: THE TRIALS OF AMANDA KNOX AND RAFFAELE SOLLECITO
Guilty: Rudy Guede, a drug dealer, was convicted of Kercher's murder
Meredith Kercher, a British student studying abroad in Perugia, was found murdered in the flat she shared with U.S. student Amanda Knox on November 1, 2007.
She, along with Knox and Sollecito, were studying at the city’s University for Foreigners.
In the days following the murder, Knox, her Italian boyfriend Raffaele Sollecito and Perugian resident Rudy Guede were all arrested for the grisly crime.
The horrific murder of the bright young woman shocked the world, and for the next four years, the world watched as Knox and Sollecito were put on trial for the murder of the 21-year-old, who suffered 43 separate knife wounds.
While being questioned by the police following the murder of her flatmate, Knox was reportedly performing cartwheels in the station and sat on Sollecito’s lap during the interrogation.
However, during her appeal, Knox addressed her actions, saying: ‘Everyone deals with tragedy in their own way.’
Guede, a drug dealer who was originally from the Ivory Coast, was later convicted of the murder.
While Knox and Sollecito were acquitted of their charges, authorities rejected Guede's appeal after his DNA was found inside of Kercher’s body.
To this day, there are many unknowns in the case, though the prosecution’s original story – that Guede broke into the cottage and tried to rape Kercher with the assistance of a drug-addled Knox and Sollecito – is deeply flawed and is now known to be far from the truth.