S29 E916 October 202043 min★ 0.0 TMDB
A Promise to Helene
Season 29
Episode 9 of 54
Protected until you decide
Episode overview
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.
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S29 E9 · A Promise to HeleneDateline
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