Forensic Files

The Root Beer Float Murder | Full Episode + Post Mortem

48 Hours

  • Apr 26, 2026
  • 1:03:12
  • Full Episode

Watch "The Root Beer Float Murder" and then join "48 Hours" correspondents Anne-Marie Green and Peter Van Sant as they discuss the murder of Harold Allen on "Post Mortem." Allen was poisoned with a root beer float by his wife, Marsha Allen, and her daughter, Ashley Jones.

00:00 The Root Beer Float Murder 41:29 Watch the "Post Mortem" podcast

True crime. Real justice. "48 Hours" investigates the most intriguing crime and justice cases that touch on all areas of the human experience including greed and passion. "48 Hours," which premiered in 1988, has developed a rich history of original reporting and impact journalism that has helped exonerate wrongly convicted people, caused cold cases to be reopened and solved, and along the way changed lives.

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Brief Summary

Marsha Allen and her daughter Ashley plotted to murder Harold Allen, ultimately succeeding with poison in a root beer float.

Key points

  • A Sudden Death. Harold Allen dies unexpectedly, prompting a 911 call from his wife Marsha.
  • The Shocking Accusation. Steven White claims Marsha poisoned Harold with a root beer float.
  • A Sinister Plot Unfolds. Investigators uncover a series of texts revealing a plan to poison Harold.
  • Ashley Names Her Mother. Ashley Jones named her mother as Harold's killer during police questioning.
  • Marsha's Suicide. Marsha Allen took her own life after being questioned about her husband's murder.
  • Ashley Sentenced. Ashley Jones was sentenced to 50 years in prison for her role in Harold's death.

Tension

85/ 100High tension

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