What Kohberger's Defense Expert Found — And Why They're Furious
Hidden Killers With Tony Brueski | True Crime News & Commentary
True Crime Today
3.3 • 907 Ratings
🗓️ 4 May 2026
⏱️ 23 minutes
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Summary
The people who hired Brent Turvey to help defend Bryan Kohberger are now publicly condemning him. Not because he did bad work. Because he's talking about what the work revealed.
Turvey is a forensic scientist — PhD in Criminology, three decades of casework, more than 70 trials as a qualified expert. Kohberger's defense team brought him in to analyze the crime scene at the King Road house where Kaylee Goncalves, Madison Mogen, Xana Kernodle, and Ethan Chapin were fatally stabbed in November 2022. He signed a confidentiality agreement. And according to him, he found something that could have upended the prosecution's entire physical case: alleged chain of custody failures on the Ka-Bar knife sheath — the evidence that carried Kohberger's touch DNA and served as the strongest physical link between him and the crime scene.
Turvey says he told the defense about this before the plea deal. He says they didn't pursue it. He says he never got a straight answer about why. Then Kohberger pleaded guilty, and the door to every unresolved evidence question closed.
Now Turvey is speaking to reporters. He's collaborated with former FBI agent Christopher Whitcomb, whose new book "Broken Plea" documents thousands of pages of previously undisclosed case files — including evidence photos, untested hair found at the scene, and expert conclusions that contradict each other on fundamental questions about how these crimes were committed.
Anne Taylor's defense team broke their silence to call Turvey appalling and accuse him of breaching his agreement. Turvey says everything he's shared was already in the public record. He calls their statement deflection. And while they publicly condemn him for talking, Taylor and co-counsel Elisa Massoth are reportedly scheduled to give their own paid, closed-door presentation about the case at a defense lawyers conference — under confidentiality rules they control.
The families deserve answers. They're getting a fight instead.
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Transcript
Click on a timestamp to play from that location
| 0:00.0 | This is Hidden Killers with Tony Brewski. |
| 0:03.3 | Here now, Tony Brewski. |
| 0:06.6 | Brian Coburger's defense team just broke their silence. |
| 0:09.8 | Not to talk about justice for the University of Idaho students he admitted to taking the lives of. |
| 0:15.2 | Not to address the family still living inside that grief. |
| 0:18.3 | Their first public appearance, public statement, rather, since the sentencing, the |
| 0:22.6 | first words Anne Taylor and her team have put on record since Coburger was handed for |
| 0:28.3 | consecutive life terms was aimed squarely at one of their own. |
| 0:34.8 | A forensic scientist, they hired. A man named Brent Turvey. And what they said about |
| 0:43.0 | him, carries a kind of fury. You rarely see from defense attorneys turning on an expert they |
| 0:50.0 | personally retained. They called his conduct appalling. |
| 0:55.8 | They accused him of violating a confidentiality agreement. |
| 1:00.5 | He signed. |
| 1:02.1 | They said he's now speaking publicly about topics that remain confidential, |
| 1:05.8 | many of which they claim fall outside his area of expertise. |
| 1:10.7 | And the reason this matters, the reason any of this should concern you, is what |
| 1:16.9 | Turvey is actually saying. |
| 1:19.2 | Because at the center of this very public war between a defense team and their own hired |
| 1:24.5 | gun is the single most critical piece of physical evidence in the |
| 1:28.7 | entire K-Burger case. |
| 1:31.3 | The K-Barr knife sheet thought in Madison Mogan's bed and whether it ever should have been |
| 1:37.8 | allowed into a courtroom at all. |
... |
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