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Watch Dateline: Secrets Uncovered Season 9 Episode 21 Online

  • 7.9/10
  • COUNTRIES: United States of America
  • Subtitles: English

Beloved by his colleagues, Mark Hasse was a fearless prosecutor. He worked to put criminals behind bars and making enemies was a hazard of the job. He didn’t know it, but a killer was lurking and Mark wasn’t the only target.