FOXBORO, MA - OCTOBER 21: Aaron Hernandez #81 of the New England Patriots leaves the field during a game with New England Patriots at Gillette Stadium on October 21, 2012 in Foxboro, Massachusetts. (Photo by Jim Rogash/Getty Images)

    From Super Bowl to murder suspect

    CNN's Susan Candiotti previews the murder trial of former New England Patriots player Aaron Hernandez and the evidence that will be allowed at trial.