Episode

A Promise to Helene

Podcast: Dateline NBC
Published: Sep 1, 2026
Duration seconds: 2432
Processing state: not_requested
Canonical source: https://www.nbcnews.com/dateline
Audio: https://dts.podtrac.com/redirect.mp3/pdst.fm/e/tracking.swap.fm/track/WyZndMW35x3t79tHlknd/nbcnews.simplecastaudio.com/ae183fe2-c634-458a-93dd-5770f0676f77/episodes/34976e44-a187-47f0-b235-fadbdbda55d1/audio/128/default.mp3?aid=rss_feed&awCollectionId=ae183fe2-c634-458a-93dd-5770f0676f77&awEpisodeId=34976e44-a187-47f0-b235-fadbdbda55d1&feed=HL4TzgYC
JSON: /v1/public/podcasts/dateline-nbc-945141/episodes/a-promise-to-helene
Markdown: /podcast/dateline-nbc-945141/a-promise-to-helene.md

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Summary

When 21-year-old college student Helene Pruszynski is found murdered, the case remains cold for nearly forty years until a new detective uses an innovative method to catch Helene’s killer. Josh Mankiewicz reports.