ROME (Reuters) - Italy's top court threw out a conviction of American Amanda Knox for the 2007 murder of her British flatmate due to "glaring errors" in the case against her, a document showed on Monday.
The brutal stabbing of 21-year-old Meredith Kercher prompted a zigzag of contradictory rulings which ended in March with the acquittal of Knox and her Italian boyfriend Raffaele Sollecito, casting an uncomfortable spotlight on Italy's legal system.
The Court of Cassation said there were no certain biological traces of Knox or Sollecito in the room where the murder was committed, nor on the victim's body.
"There was no shortage of glaring errors in the underlying fabric of the sentence in question," the court wrote in the official explanation of its reasons for striking down the second guilty verdict handed to the pair.
Ivory Coast-born Rudy Guede, who is serving a 16-year sentence for the murder after opting for a fast-track trial, left "copious" biological traces at the scene, the court said.
Knox and Sollecito said they were innocent of killing Kercher, who had been Knox's housemate in the town of Perugia, throughout two convictions, two acquittals and four years each in jail.
(Reporting by Silvia Ognibene and Isla Binnie; editing by Ralph Boulton)