Forensic Files

An accused killer pleads guilty, but not to murder. The next chapter in the Dulos case. Plus, a NXIVM story.

Dateline NBC

  • Nov 20, 2025
  • 28:42
  • Full Episode
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<p>Brian Walshe, the Massachusetts art swindler accused of murdering his wife, pleads guilty to some -- but not all -- of the charges he faces ahead of trial. Michelle Troconis, the woman convicted of conspiring with her boyfriend to kill his estranged wife, Connecticut mother-of-five Jennifer Farber Dulos, has filed a thousand-page appeal. News on the murder of "Last Chance U" football coach John Beam and Karen Read's new lawsuit. Plus, Smallville actress and former NXIVM cult member, Allison Mack, shares her story on a new podcast.</p><p><br /> </p><p>Find out more about the cases covered each week here: <a href="http://www.datelinetruecrimeweekly.com">www.datelinetruecrimeweekly.com</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

Brian Walsh pleads guilty to misleading police in Anna Walsh's case; Michelle Traconis appeals her conviction in Jennifer Dulos case; Allison Mack reflects on NXIVM.

Key points

  • Brian Walsh's Guilty Plea. Brian Walsh pleads guilty to lesser charges in the case of his missing wife, Anna.
  • Michelle Traconis Appeals Conviction. Michelle Traconis files a 1,000-page appeal to overturn her conviction for conspiracy to murder.
  • Karen Reed's Major Lawsuit. Karen Reed sues investigators claiming she was framed for her boyfriend's death.
  • Cold Case Cracked by Students. Criminology students help police solve a decades-old murder case in Texas.
  • The Dark Side of NXIVM. Allison Mack reveals her role in NXIVM, a self-help group turned sex cult.
  • Allison Mack's Release and New Podcast. Allison Mack, once a star on Smallville, is out on bail and launching a new podcast series.

Tension

75/ 100High tension

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