called Filomena Romanelli, one of the two Italian trainee lawyers she and Kercher shared the apartment with, and in a mixture of Italian and English said she was worried something had happened to Kercher, as on going to Via della Pergola 7 apartment earlier that morning Knox had noticed an open front door, bloodstains (including a footprint) in the bathroom, and Kercher's bedroom door locked. Knox and Sollecito then went to Via della Pergola 7, and on getting no answer from Kercher unsuccessfully tried to break in the bedroom door, leaving it noticeably damaged. At 12:47 pm, Knox called her mother and was told to contact the police as an emergency. Sollecito called the Carabinieri, one of Italy's national police forces, getting through at 12:51 PM. He was recorded telling them there had been a break-in with nothing taken, and the emergency was that Kercher's door was locked, she was not answering calls to her phone, and there were bloodstains. Police telecommunications investigators arrived to inquire about an abandoned phone, which was in fact Kercher's Italian unit. Romanelli arrived and took over, explaining the situation to the police who were informed about Kercher's English phone, which had been handed in as a result of its ringing when Knox called it. On discovering Kercher's English phone had been found dumped, Romanelli demanded that the policemen force Kercher's bedroom door open, but they did not think the circumstances warranted damaging private property. The door was then kicked in by a friend of Romanelli, and Kercher's body was discovered on the floor. She had been stabbed and died of blood loss from neck wounds. Investigation The first detectives on the scene were Monica Napoleoni and her superior Marco Chiacchiera. Napoleoni conducted the initial interviews and quizzed Knox about her failure to immediately raise the alarm, which was later widely seen as an anomalous feature of Knox's behaviour. According to Knox, Napoleoni was hostile to her from the outset. Chiacchiera discounted the signs of a break-in, deeming them clearly faked by the killer. The police were not told the extent of Kercher's relationship with Silenzi in initial interviews. On November 4, the same day Chiacchiera was quoted as saying that someone known to Kercher and let into the building by her might be responsible for her murder, Guede is believed to have left Perugia. Interviews, arrest, and arraignment Over the following days Knox was