MILAN (AP) -- Italian prosecutors asked the country's highest criminal court on Tuesday to reinstate the murder convictions of American Amanda Knox and her former boyfriend in the brutal slaying of a British student.Perugia prosecutors filed the 112-page appeal, more than four months after an appeals court threw out the convictions against Knox, 24, and Raffaele Sollecito, 27.Prosecutors Giovanni Galati said he is \very convinced\ that Sollecito and Knox are responsible for the Nov. 1, 2007, stabbing death of Meredith Kercher, a 21-year-old British student who shared an apartment with Knox in the university town of Perugia.Galati told reporters in Pergugia that the appeals sentence must be thrown out, saying it was full of \ommissions and many errors