Chilling photos reveal evidence that brought down Bryan Kohberger

Chilling Photos Reveal Evidence That Brought Down Bryan Kohberger

Photos of the Ka-Bar knife sheath have been released for the first time as part of over 2,300 pages of evidence published by Idaho State Police.

Key Evidence Linking Kohberger to the Crime

The brown leather Ka-Bar knife sheath was left behind by Bryan Kohberger when he fled the scene shortly after the murders of four University of Idaho students on November 13, 2022. This sheath was crucial in identifying Kohberger as the killer because forensic genetic genealogy matched DNA found on the sheath at the crime scene in Moscow, Idaho, directly to the 30-year-old criminology PhD student.

Details of the Knife Sheath

Background on the Weapon

Kohberger purchased the sheath along with a Ka-Bar knife, which is suspected to be the murder weapon, from Amazon in March 2022. This was eight months prior to the attack and three months before he relocated from his parents’ home in Albrightsville, Pennsylvania, to Pullman, Washington.

"The crucial piece of evidence that led to the killer’s downfall was the DNA on the sheath left behind at 1122 King Road in Moscow, Idaho."

The knife itself has never been recovered.

Author’s summary: The discovery and DNA evidence on a Ka-Bar knife sheath were vital in identifying Bryan Kohberger as the murderer of four Idaho students, despite the actual knife remaining missing.

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Daily Mail Daily Mail — 2025-11-04