italy's highest court overturning the conviction. she and her then boyfriend were found guilty in the killing of british student meredith kercher. they spent four years in prison before being acquitted. that acquittal was overturned and the decision was reversed and ends the case for good now. knox said she's in disbelief. >> i'm so grateful and i -- i'm so grateful to have my life back. thank you. right now i'm still absorbing what all of this means. and what -- what comes to mind is my gratitude for the life that's been given to me. >> amanda knox. the judges concluded that the evidence did not support a conviction. their reasoning behind the decision will be released within 90 days. well, still to come a former partner in a major silicon