A Promise to Helene
Dateline · Season 29 · Episode 9
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.
Episode Details
Air date, runtime, timezone, and episode position.
Season
29
Episode
9
Air Date
16/Oct/2020
Air Time
21:00
Runtime
43 min
Overview
Episode summary.
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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