Dateline Season 29 Episode 9 A Promise to Helene 2020
6.5/10 by 42 users
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.
- Released: 2020-10-16
- Runtime: 43 minutes
- Genre: News, Documentary
- Stars:
- Director:
