Knox admitted being in house when Kercher was killed, court told

• Admission made during interview, says investigating officer • Defence questions whether police contaminated crime scene Amanda Knox emerged in tears from an interrogation during which she admitted to being in the house when her British flatmate, Meredith Kercher, was stabbed to death, the police officer leading the investigation told a court today. Chief Superintendent Giacinto Profazio said that up to then, the young American had been in boisterous mood as she waited outside while her Italian...