Forensic Files

The Root Beer Float Murder | Post Mortem

48 Hours

  • Apr 11, 2026
  • 21:45
  • Full Episode

"48 Hours" correspondents Anne-Marie Green and Peter Van Sant discuss the murder of Harold Allen, who was poisoned with a root beer float by his wife and her daughter.

Crime. Social justice. Impact. "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.

For video licensing inquiries, contact: licensing@veritone.com

Brief Summary

Marsha and Ashley Allen conspired to murder Harold Allen using poison, leading to shocking revelations and Marsha's suicide.

Key points

  • The Root Beer Float Murder. Harold Allen was poisoned by his wife and daughter, leading to a shocking investigation.
  • Marsha's Suicide. Marsha Allen died by suicide after being questioned about her husband's murder.
  • Breaking the News. An emotional moment for the crew as they realize they might be on the right track.

Tension

75/ 100High tension

More from 48 Hours

Solve the Crime

Read a real case one clue at a time, then see how your call held up against the investigators.

Start a Case

Join Team Forensic Files

Regular case drops, breaking crime news, and podcast premieres, straight to your inbox.

or

Forgot your password?