Bryan Kohberger's defense team has issued its first public statement since his guilty plea, and this time, they are taking aim at one of their own experts.

Attorneys Anne Taylor, Elisa Massoth, and Bicka Barlow accused forensic scientist Brent Turvey of violating a confidentiality agreement after his recent public comments about the Ka-Bar knife sheath, chain-of-custody concerns, and case-related materials. Turvey denies wrongdoing, saying the information he discussed was already public or included in discovery.

The controversy centers on one of the most important pieces of evidence in the University of Idaho murders case: the knife sheath recovered from the crime scene, which later became central to the DNA evidence tied to Kohberger.

In this video, we break down what the defense said, how Turvey responded, why the knife sheath evidence still matters, and whether these chain-of-custody claims would likely have changed anything in court.

Rest in peace Kaylee Goncalves, Madison Mogen, Xana Kernodle, and Ethan Chapin.

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