Foxy Knoxy 'gave herself away by revealing a murder detail only the killer would know'

A suspect in the murder of British student Meredith Kercher gave herself away by revealing details only the killer would know, Italian police said yesterday.

Amanda Knox, 20, told friends of Miss Kercher that she died slowly from a stab wound to the neck.

A prosecution source asked: "The question is, how did she know these particular details as only police and the killer would have been aware of them?"

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Knox, an American who called herself Foxy Knoxy on a website, has been in custody for more than six weeks on suspicion of murdering her 21-year-old flatmate in the Italian city of Perugia.

Police and prosecutors now plan to reinterview six of Miss Kercher's British friends about Knox when they return to Perugia next month.

One, Robyn Butterworth, has already told detectives that Knox seemed to be boasting about finding her flatmate's body as they waited in Perugia police station in the aftermath of the killing.

Miss Butterworth, a Leeds University exchange student like Miss Kercher, said in a statement: "She was talking at the top of her voice, saying she found the front door open and she went into the bathroom and saw blood on the floor.

"I remember Amanda kept going on about how she found the body. It was as if she was proud to have been the one who found it.

"She was saying how she had seen Meredith's body reflected in the mirror of a wardrobe.

"I remember thinking her behaviour was very strange. It was as if she wasn't bothered at all. It also struck other friends who were there."

Knox's Italian boyfriend Raffaele Sollecito, 23, and Rudy Hermann Guede, 20, are also being held.