ash january na airlines crash. three people on that flight were killed, one of them when she was run over by a fire truck. you hear firefighters warn more than once about the teenager nearby, but they end up running over the girl twice. let's get straight to dan simon tracking the developments on this story. good morning, dan. >> reporter: good morning. it was a tragic revelation. she survived the crash only to be run other by a fire truck. this video is raising serious questions. >> stop, stop, stop. there's a body right -- there's a body right there. right in front of you. >> reporter: chilling new video obtained by cbs news giving us a rare up close look from a firefighter's helmet cam. the chaotic moments first