When police retrace the final hours of 16-year-old Cassie Jo Stoddart, they uncover evidence including a homemade horror film that points to her killers. Keith Morrison reports. Keith Morrison and Andrea Canning go behind the scenes of the making of this episode in ‘Talking Dateline’: Listen on Apple: https://apple.co/3ZsjYY5 Listen on Spotify: https://open.spotify.com/episode/1NPliA3qtHqz0EBMb0BzBP