When college student Helene Pruszynski is found murdered, her case remains cold for nearly 40 years until a new detective uses an innovative method to catch the killer. Josh Mankiewicz reports.
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