Updated

Italian prosecutors said they believe the American student suspected in the stabbing death of her British roommate in Italy stole money from Meredith Kercher to pay a drug dealer and that the Brit was killed when she walked in at the wrong moment, the Times of London reports.

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Prosecutors said Rudy Hermann Guede, an Ivory Coast immigrant and a suspect in the 21-year-old’s murder, allegedly supplied hashish to American Amanda Knox, 20, and her Italian ex-boyfriend, Raffaele Sollecito, 23. The couple admitted to being high on the night of Kercher’s death.

Guede, 20, claims he had a rendezvous with Kercher on Nov. 2, the night she was killed, and in a memorandum leaked to Italian papers he claims that Kercher called Knox a "drugged-up tart."

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Kercher was found with her throat cut and her body sexually assaulted. Police believe the kitchen knife used in the crime originated from Sollecito’s flat. His role in the murder remained unclear. Sollecito and Knox remain in custody in Italy; a fourth suspect, Congolese bar owner Diya "Patrick" Lumumba, 38, was released from jail in connection with the murder.

Guede claims he was in the bathroom with stomach pains when an assailant entered the cottage and stabbed Kercher.

Relatives of Kercher on Friday gathered in London for her funeral, where mourners congregated at Croydon Parish Church for a private service, Sky News reported.

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Dozens of her friends from the University of Leeds and former schoolmates packed the church.

Her parents, Arline and John, her sister, Stephanie, and brothers John and Lyle followed Kercher's coffin.

The Rev. Colin Boswell said he hoped his sermon would "bring some life and light into what is a very dark situation."