"48 Hours" to broadcast Knox's untold story

Following the acquittal of Amanda Knox this week, "48 Hours Mystery" will broadcast "Amanda Knox: The Untold Story," on Saturday, Oct. 8 at 10 p.m. ET/PT.

Correspondent Peter Van Sant has covered this dramatic case through the years from Perugia, Italy, and has now followed Amanda and her family to Seattle. His report reveals details of the cruel manipulation and sexual intimidation Knox endured while behind bars, in her own words, from a letter that she wrote.

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Knox wrote that a high-ranking prison administrator ordered her into his office alone, at night, to talk about sex. Amanda eventually came to believe that the administrator's real motive was to intimidate her and provoke her to say something that would support the prosecution's theory that she really was a sex-crazed killer.

Investigative journalist and CBS News Consultant Bob Graham, reads from Amanda's letter: "'He was fixated on the topic of sex, with whom I'd done it, how I liked it, if I would like to do it with him. When I realized that he really wanted to talk to me about sex I would try to change the subject...

"'I realize that he was testing me to see if I reacted badly, to understand me personally. He wanted to get a reaction or some information from me. I did not get the seriousness of the situation.'"

"48 Hours Mystery" will also broadcast exclusive video diaries from Knox's best friend, Madison Paxton, collected over 10 months. Paxton moved to Italy to support Amanda and help fight for her freedom.

Van Sant will discuss the case live on Facebook, while the producers of "48 Hours Mystery" will lead the conversation on Twitter #48hours during the broadcast.