When a young teacher in Pennsylvania is murdered, her friends wonder if the killer will be caught. Following years without an arrest, investigators discover a new tool that may finally help unlock the murderer's identity.
Genres: Crime , Documentary
Keywords: correspondent , homicide , homicide-investigation , interview , investigative-journalism , missing-person , murder , mysterious-disappearance , mystery , news-magazine , serious , true-crime , latest-web-series-online , tv-shows-online