Students at a Mississippi high school were in mourning after a player on their football team died during a game. 16-year-old Dennis Mitchell was a sophomore at Byhalia High School. On its Facebook page, the school said he was playing in an away game when he collapsed on the field. Mitchell was taken to the hospital, but it was too late to save him. His sister says her parents are inconsolable. InsideEdition.com's Mara Montalbano (https://twitter.com/MaraMontalbano) has more.