Forensic Files

Gilgo Beach serial killer pleads guilty. Hawaii doctor learns his fate. Plus, reasonable doubt.

Dateline NBC

  • Apr 9, 2026
  • 35:33
  • Full Episode
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<p>In Long Island, Gilgo Beach serial killer Rex Heuermann pleads guilty to murders spanning decades. The families of his victims speak out. In Hawaii, a verdict at the trial of anesthesiologist Gerhardt Konig, who is accused of attempting to murder his wife on a hike. Plus, a veteran prosecutor explains what reasonable doubt means in a jury trial.</p> <p>Help "Missing in America" win a Webby award. Vote here: <a href="https://vote.webbyawards.com/PublicVoting#/2026/podcasts/shows/crime-justice" rel="noopener noreferrer">https://vote.webbyawards.com/PublicVoting#/2026/podcasts/shows/crime-justice</a></p><br/> <p>Hosted by Simplecast, an AdsWizz company. See <a href="https://pcm.adswizz.com">pcm.adswizz.com</a> for information about our collection and use of personal data for advertising.</p>

Brief Summary

Rex Heuerman pleads guilty to multiple murders; Dr. Koenig's trial reveals complex dynamics of attempted murder case; reasonable doubt discussed.

Key points

  • Gilgo Beach Serial Killer Arrest. After 30 years, police arrest Rex Heuerman for the murders of seven victims.
  • Heuerman Pleads Guilty. Rex Heuerman pleads guilty to multiple murders, shocking the courtroom.
  • Emotional Family Reactions. Families of victims express relief and sorrow as Heuerman pleads guilty.
  • Hawaii Anesthesiologist Trial. Dr. Gerhardt Koenig's trial reveals a dramatic story of attempted murder on a hike.
  • Verdict Reached in Koenig Case. Dr. Gerhardt Koenig found guilty of attempted manslaughter after a tense trial.

Tension

75/ 100High tension

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