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.
Listen to Keith Morrison and Andrea Canning as they go behind the scenes of the making of this episode in ‘Talking Dateline’: https://link.chtbl.com/tdl_thesecretinblackrockcanyon