Amanda Knox's tell-all memoir about the four years she spent in Italian jail for the killing of British student Meredith Kercher will be released on April 30, publishing house HarperCollins said Wednesday.

Titled "Waiting to be Heard," the book is the 25-year-old's version of the story that made international headlines since it involved an American allegedly killing a British girl and then being sentenced in Italy. HarperCollins reportedly paid Knox $4 million for rights to the book that stemmed from her connection to the 2007 killing of Kercher. 

HarperCollins said the memoir would give a "full and unflinching" account of the events surrounding Knox's arrest and trial.

The 21-year-old British student, who lived with Knox in Perugia, Italy, was found in a pool of blood in their apartment on Nov. 2, 2007. Knox was convicted, along with her then-boyfriend Raffaele Sollecito, of sexual assault and the murder of Kercher. She spent four years in Italian prison before she and Sollecito were acquitted and released in October of 2011. Knox then went to live in Seattle, Wash.

The book deal was announced in February of 2011 following intense negotiations and battles between 20 different publishers wanting rights to the story, according to The Daily Mail. It's April release is two months later than originally scheduled. However, the date was changed because of a March 25 hearing scheduled by an Italian court so that the prosecution may appeal Knox's acquittal in the murder case.

The cover image for the memoir, which features Knox with a serious look on her face, was taken earlier this year. 

Sollecito published a book in September titled "Honour Bound" and Kercher's father, John, also published a book, which gives an emotional account of the loss he faced following his daughter's death.