New video shows person of interest in Brown University shooting

Tonight, authorities released this enhanced footage and a detailed video timeline of the person of interest that starts two hours before the mass shooting at Brown University. Stitched together from surveillance footage pulled from nearby homes and businesses, even dash cam video. >> We are relying on the press and public to help get us there.>> The beginning of the footage posted today by the FBI is timestamped 2 p. m. just a block from the university.You see him face covered, carrying a black bag, walking ...