Deadly Mischief

Dateline NBC

  • Oct 28, 2025
  • 1:23:27
  • Full Episode
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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.

Blayne Alexander and Dennis Murphy go behind the scenes of the making of this episode in ‘Talking Dateline’

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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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