Forensic Files

Deadly Mischief

Dateline NBC

  • Oct 28, 2025
  • 1:23:27
  • Full Episode
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<p>Dennis Murphy reports on the trial of 75-year-old Florida grandmother Donna Adelson, whose family is tied to an elaborate murder-for-hire plot in the death of her former son-in-law, Dan Markel.</p><p>Blayne Alexander and Dennis Murphy go behind the scenes of the making of this episode in ‘Talking Dateline’</p><p>Listen on Apple: <a href="https://apple.co/4oDvL0p">https://apple.co/4oDvL0p</a></p><p>Listen on Spotify: <a href="https://open.spotify.com/episode/2s7MAihEUJmC5Lkt1rSP8X">https://open.spotify.com/episode/2s7MAihEUJmC5Lkt1rSP8X</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

The episode reveals the twisted family dynamics behind Dan Markell's murder and the subsequent convictions of his ex-wife and her family.

Key points

  • A Family Torn Apart. The murder of Dan Markell reveals deep family rifts and betrayal.
  • The Shocking Confession. One of the accused hitmen pleads guilty, unraveling the mystery further.
  • Luis Rivera's Confession. Luis Rivera pleads guilty to second-degree murder and reveals the contract to kill Dan Markell.
  • Charlie Adelson's Arrest. Charlie Adelson is arrested for first-degree murder, conspiracy, and solicitation of murder.
  • Katie's Life Sentence. Katie McBonawa is convicted and sentenced to life in prison for her involvement in the murder.
  • Wendy's Testimony. Wendy Adelson testifies under immunity, denying involvement in her ex-husband's murder.

Episode highlights

Tension

85/ 100High tension

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