By Paolo Chiriatti
ROME (Reuters) -Italy's highest court on Thursday upheld the conviction of American Amanda Knox for slander in a case related to the murder of her British flatmate in 2007, the final act in a legal drama lasting almost two decades.
An appeals court in Florence had last year handed Knox a three-year sentence for wrongly accusing Congolese bar owner Patrick Lumumba of killing Meredith Kercher in the city of Perugia.
Knox, 37, served four years in jail for the killing of Kercher before the conviction was annulled in 2015. She was aiming to clear her name in Rome's Court of Cassation in the last legal case against her over the affair.