The Murder of Toni Tedder | Cold Case Files | Episode 5

The Murder of Toni Tedder | Cold Case Files | Episode 5

From Help Me Hayley: Cold Case Files by NonStop Local

May 11, 2026 · 17 min

About this episode

This episode explores the unsolved murder of 18-year-old Toni Tedder in Clarkston, Washington, discussing the investigation and lingering questions surrounding the case.

The July 1990 murder of 18-year-old Toni Tedder remains one of the most haunting unsolved cold cases in Clarkston, Washington and one of the Pacific Northwest’s enduring murder mysteries. Toni had just graduated from Clarkston High School and was sleeping on her family’s living room couch when she was stabbed to death while family members slept nearby. Investigators say a wood-handled fishing fillet-style knife was left near Toni Tedder’s body, and questions surrounding the unsolved Clarkston murder investigation continue decades later. Was Toni Tedder the victim of a random attack or a targeted killing, and why has the case never been solved despite witness accounts and physical evidence? In this episode of Help Me Hayley: Cold Case, Hayley Guenthner speaks with Clarkston investigators and retraces the timeline of the 1990 Toni Tedder murder searching for clues that could finally help connect the community to justice. Watch the Help Me Hayley cold case podcast now on the NonStop Local KHQ YouTube channel.

People in this episode

Host: Hayley Guenthner

Topics covered

  • cold case
  • murder mystery
  • investigation
  • unsolved crime
  • Pacific Northwest
  • Toni Tedder

Keywords

  • Toni Tedder
  • cold case
  • murder
  • Clarkston
  • Washington
  • 1990
  • investigation
  • unsolved

Mentioned in this episode

Books & works: Help Me Hayley: Cold Case

Places: Clarkston, Washington

More episodes of Help Me Hayley: Cold Case Files

Explore listener stats, chart rankings, contacts and more on the Help Me Hayley: Cold Case Files podcast page.