Almost ten years after her acquittal in a notorious murder trial, the US-American Amanda Knox is back in court in Italy. The now 36-year-old appeared before an appeals court in Florence on Wednesday because she wants to obtain another acquittal in connection with the murder of a British exchange student in 2007. Knox now lives in the US. The murder of 21-year-old Meredith Kercher in the central Italian city of Perugia made headlines around the world in 2007. One of her flatmates, an American woman a year younger than her, quickly came under suspicion. Amanda Knox was initially convicted and se…