Bryan Kohberger’s Missing KA-BAR Knife: FBI Expert on Hidden Caches, Trophies & Lost Evidence

FBI Unscripted | Real Agents On Real Crime

Hidey Hole & Missing Evidence Segment
Bryan Kohberger’s Missing KA-BAR Knife: FBI Expert on Hidden Caches, Trophies & Lost Evidence
Even with Bryan Kohberger convicted and serving a life sentence, key evidence in the Idaho Four murders is still missing — most notably, the KA-BAR knife and the clothing he wore on the night of the killings. In this in-depth interview, retired FBI Special Agent Jennifer Coffindaffer explores the possibility that Kohberger may have created his own “hidey hole” for evidence, similar to BTK or Israel Keyes — a stash of weapons, clothing, or trophies hidden away for him to revisit.
We discuss how post-crime behavior in similar offenders often involves retaining key items as part of the fantasy loop, rather than discarding them. Could that be why the KA-BAR and other evidence has never been recovered? And what about the IDs found at Kohberger’s parents’ home — not just the two that have been discussed publicly, but the ten listed on the FBI property receipt? Why are only two being talked about, and what does that mean for the investigation?
Jennifer shares her insight into how offenders often curate and conceal physical reminders of their crimes, and why these hidden caches can hold both psychological significance for the offender and potential forensic value for investigators. We also explore whether there’s any incentive for Kohberger to reveal these locations, and how that could play into his desire for notoriety.
If these items are ever found, they could answer questions that have lingered for years — or open up disturbing new ones.
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Keywords:
Bryan Kohberger, Idaho murders, KA-BAR knife, Kohberger hidey hole, BTK killer, Israel Keyes, Kohberger evidence, Idaho4 case, Kohberger trophies, FBI profiler, Jennifer Coffindaffer, Idaho crime​
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