FBI Expert Says New Evidence May Point to Kohberger’s Secret Murder Weapon Stash

Where is Bryan Kohberger’s KA-BAR knife? The sheath was recovered at the Idaho student murders crime scene — complete with DNA linking it to Kohberger — but the blade itself has never been found. Investigators searched his apartment, car, and family home, yet came up empty.

Now, retired FBI Special Agent Robin Dreeke, former head of the Counterintelligence Behavioral Analysis Program, is presenting a chilling theory that could finally explain the mystery. Dreeke believes Kohberger may have hidden the KA-BAR in a remote “cache” — possibly in Wawawai County Park, a place he visited repeatedly before and after the murders.

Drawing on patterns from notorious killers like Israel Keyes, BTK, and Robert Hansen, Dreeke explains how offenders often bury weapons and other items in secluded spots they can revisit later. In Kohberger’s case, this could mean the KA-BAR was hidden months in advance as part of premeditated planning, then returned to its hiding place after the murders during his unusual southern detour.

If true, the missing knife isn’t just lost evidence — it’s a calculated part of Kohberger’s identity. By keeping it hidden but retrievable, he could maintain control, revisit it in his mind, and preserve a tangible connection to his crime. Dreeke outlines four likely hiding spots based on geographic analysis, offender behavior, and Kohberger’s known movements.

Could the KA-BAR still be buried there? If so, what else might be with it — clothing, trophies, or evidence from other crimes? This conversation explores the tactical, psychological, and investigative layers behind the theory, raising new questions about what Kohberger did before and after that night in November.

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