Idaho murders: New book on Kohberger reveals previously unseen evidence, claims sheath could be inadmissible

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EXCLUSIVE: A caller publication reveals what Bryan Kohberger's proceedings defence would person looked similar had helium not changed his plea successful the Idaho pupil murders weeks up of proceedings and reveals the defence could person argued for the astir captious grounds successful the lawsuit — a Ka-Bar weapon sheath — to beryllium tossed.

Christopher Whitcomb's "Broken Plea: The Explosive Search for Truth Behind the Idaho Murders," draws connected antecedently unseen adept reports and different materials that were ne'er presented publically successful tribunal aft Kohberger pleaded blameworthy weeks earlier his proceedings date.

In an exclusive interrogation with Fox News Digital, Whitcomb revealed that a defence adept raised superior concatenation of custody concerns surrounding the sheath recovered successful unfortunate Madison Mogen's bed.

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Bryan Kohberger successful  reddish  jailhouse  jumpsuit and shackles escorted by deputies astatine  Monroe County Courthouse

Bryan Kohberger arrives astatine Monroe County Courthouse successful Pennsylvania for his extradition proceeding earlier being sent to Idaho. He pleaded blameworthy connected July 2, 2025, to the deaths of University of Idaho students Madison Mogen, Kaylee Goncalves, Xana Kernodle and Ethan Chapin aft much than 2 years successful custody awaiting trial. (The Image Direct for Fox News Digital)

"It is plausible for idiosyncratic to reason that the concatenation of custody would person led to important problems for the prosecution successful presenting grounds of immoderate benignant of DNA, and if that were to beryllium excluded, past you person a achromatic car and you person the compartment operation pings," helium said. "I would say, fundamentally, looking astatine this lawsuit fundamentally, that occupation is the biggest occupation the prosecution would person had."

Brent Turvey, a criminologist and forensic idiosyncratic hired by the defense, said helium became alert of the concatenation of custody contented aft filing his adept study to conscionable a tribunal deadline.

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Bryan Kohberger lasting  successful  a courtroom astatine  the Ada County Courthouse successful  Boise, Idaho

Bryan Kohberger appears astatine the Ada County Courthouse successful Boise, Idaho, connected July 2, 2025, charged successful the murders of 4 University of Idaho students. (Kyle Green/AP)

"If this had gone to trial, this portion of grounds should have, by immoderate competent jurist, been ruled inadmissible," helium said of the sheath. "In astir cases, successful astir jurisdictions, it would be."

No justice oregon assemblage has evaluated that claim.

"The occupation is simply a concatenation of custody signifier is expected to beryllium thing that is created live," Turvey said Wednesday. "So, if I instrumentality a container of grounds and I retrieve it, I motion that I've retrieved it, enactment my signature connected it, the date, you know, that benignant of stuff."

The grounds container appears to person been filled successful twice. Once connected the container itself, and aboriginal connected a sticker attached to the front.

A divided  representation  shows a brownish  grounds  container  with stickers and dates written connected  it.

This divided representation shows 2 undated photos of an grounds container that writer Christopher Whitcomb says contained the Ka-Bar weapon sheath, the prosecution's main carnal grounds against Bryan Kohberger. The earliest day written connected it, on the grounds sticker, is 11/14/22, signed with the initials "BP" — apt pb detective Brett Payne. Whitcomb's caller book, "Broken Plea," raises concerns astir the concatenation of custody of this evidence. (Courtesy of Christopher Whitcomb)

The earliest day disposable connected the container are the initials "BP," apt belonging to pb detective Brett Payne, and the day "11/14/22," written implicit the grounds portion sealing the bag. Another signature appears to beryllium from Shannon Arredondo, a forensic specializer with the Idaho State Police transgression lab, signed and dated the container again connected Nov. 16. The label, affixed sometime later, has six recorded exchanges betwixt Nov. 13 and Nov. 16 written by a azygous pen successful akin handwriting, according to Turvey.

Kohberger's defence team, led by Idaho lawyer Anne Taylor, did not prosecute his findings earlier the plea deal, however, Whitcomb said. She did not respond to a Fox News Digital petition for comment.

"There are important issues with motive, means, mechanism. There are so, truthful galore screaming questions that cipher volition ever person answers to." — Christopher Whitcomb, author

If the insubstantial way is flawed arsenic alleged, that doesn't needfully mean investigators botched the case, said Paul Mauro, a retired NYPD inspector and Fox News contributor.

"But what it could constituent to is that is simply a vulnerability successful the case, truthful they instrumentality a plea," helium said. "They could person been acrophobic astir losing a juror connected that. On the different manus it's precise indicative of what you bash erstwhile you person perfectly nary defense, you enactment the process connected trial, alternatively of the facts."

Mauro, aft reviewing images of the grounds bag, said helium didn't spot a important occupation for the prosecution.

That's conscionable 1 constituent of Kohberger's defence that ne'er faced assemblage scrutiny, and Whitcomb said helium reviewed thousands of pages of further documents that helium didn't person country to constitute about.

Madison Mogen smiling connected  Kaylee Goncalves' shoulders with Ethan Chapin, Xana Kernodle, and 2  different   housemates posing for a photo

University of Idaho students Madison Mogen, Kaylee Goncalves, Ethan Chapin, Xana Kernodle, and 2 different housemates airs successful the last photograph shared by Goncalves connected Instagram earlier 4 students were fatally stabbed successful November 2022. (Facebook)

A 2nd cardinal constituent successful "Broken Plea" is speculation surrounding wisps of hairsbreadth photographed astatine the transgression country in, oregon astatine slightest beneath, Ethan Chapin's hand.

"To the champion of my knowledge, that hairsbreadth to this time has ne'er been processed oregon tested," Whitcomb told Fox News Digital.

Turvey, a elder spouse astatine Forensic Solutions LLC who has testified astatine much than 70 trials, recovered the hairsbreadth erstwhile helium traveled to Moscow, Idaho, to reappraisal grounds successful person.

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A watchman lasting  extracurricular  a location   astatine  1122 King Road with snowfall  and constabulary  tape

A watchman is parked extracurricular 1122 King Road connected Dec. 11, 2022, 4 weeks aft 4 students were stabbed to decease inside. The spot is scheduled for demolition a twelvemonth later, though critics accidental it should stay until the suspect's trial. (Michael Ruiz/Fox News Digital)

"The FBI laboratory said Kohberger is excluded," Turvey told Fox News Digital. "This is not his hair."

As to who it belongs to, the reply remains unclear.

"When I saw this information, it changed my position connected everything, and that's however it started," Whitcomb said, describing his information to constitute the book.

Fox News Digital has reached retired to Idaho State Police and the Moscow Police Department for comment.

The writer is simply a erstwhile subordinate of the FBI's Hostage Rescue Team and aboriginal subordinate of the bureau's Violent Criminal Apprehension Program. He plays successful a band, spent years arsenic a writer and legislature speechwriter, and has written a half-dozen different books.

KA-BAR weapon  sheath displayed connected  a aboveground  arsenic  grounds  successful  a execution  case

An grounds photograph from the Moscow Police Department shows a KA-BAR weapon sheath believed to person housed the weapon Bryan Kohberger utilized to execution 4 University of Idaho students successful November 2022. (Moscow Police Department)

"I don't consciousness it's my spot to situation what [Kohberger] told the world," helium said successful an interrogation Tuesday. "I'm not saying this is simply a wrongful conviction. He pleaded guilty. He's a well-educated, intelligent, grown man."

Jurors ne'er had a accidental to measurement successful aft Kohberger's unexpected blameworthy plea past year, erstwhile helium admitted to the Nov. 13, 2022, murders of Mogen, 21, Kaylee Goncalves, 21, Xana Kernodle, 20, and Chapin, 20.

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The plea landed him successful situation for the remainder of his life, with nary accidental of parole, but helium avoided the decease penalty. He offered nary mentation for the crimes, shared nary motive and offered nary caller information.

Prosecutors person said Kohberger remained wrong for astir 15 minutes, though the archetypal constabulary affidavit doesn't picture the nonstop clip helium went into the house. Whitcomb notes the defence communicative that the attacks took spot successful little than five, inconsistent with the hours Turvey suspects the transgression country cleanup would person taken.

While determination were galore extracurricular experts connected the case, Whitcomb focuses connected three, T. Paulette Sutton, a forensic idiosyncratic specializing successful humor spatter investigation for the prosecution; Turvey, for the defense; and Christopher Holland, a retired FBI cause and forensic criminologist besides moving for the defense.

Sutton, who did not respond to a petition for comment, concluded successful her peer-reviewed study that determination was "no carnal grounds to exclude a azygous perpetrator causing the decease of these 4 individuals." Turvey believes determination were astatine slightest two.

Both of their reports person been reviewed by Fox News Digital. They incorporate graphic transgression country images not suitable for publication.

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Exterior presumption    of Idaho State Correctional Complex successful  Kuna, Idaho

Bryan Kohberger is housed astatine the Idaho State Correctional Complex successful Kuna, Idaho, aft being sentenced for the 2022 stabbing murders of 4 University of Idaho students. (Derek Shook for Fox News Digital)

Whitcomb besides obtained entree to materials not mentioned successful the book, which helium told Fox News Digital see images of the grounds container containing the Ka-Bar sheath, 1 with a concatenation of custody signifier attached and 1 without.

Whitcomb raised a fig of issues that Taylor and the remainder of Kohberger's defence squad ne'er got a accidental to contiguous to a jury.

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Kohberger pleaded blameworthy connected July 2, 2025, admitting to each 4 murders and felony burglary successful a woody that spared him from the imaginable decease penalty.

On the nighttime of the murders, helium searched Google for section constabulary dispatch audio, according to nationalist records tied to the case. He powered disconnected his telephone earlier the murders and turned it backmost connected aft them. While investigators recovered nary of the victim's DNA successful his car aft they seized it successful Pennsylvania, an FBI expert determined ungraded connected a shovel recovered wrong it matched ungraded from the Moscow area.

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At sentencing, helium sat done unfortunate interaction statements showing nary emotion, arsenic the victims' families and surviving roommates excoriated him successful their interaction statements.

"Truth beryllium told, I’m incapable to travel up with thing redeeming astir Mr. Kohberger," Judge Steven Hippler said astatine the hearing. "His grotesque acts of evil person buried and hidden thing that mightiness person been bully oregon intrinsically quality astir him."

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Cpl. Brett Payne and Lt. Darren Gilbertson speaking astatine  a property   conference

Cpl. Brett Payne of the Moscow Police Department and Lt. Darren Gilbertson of the Idaho State Police talk to the media during a property league astatine the Ada County Courthouse aft Bryan Kohberger's sentencing connected July 23, 2025. (Kyle Green/Associated Press)

Hippler handed down a condemnation of 4 consecutive presumption of beingness successful situation with nary parole, positive different 10 years.

As portion of the plea, Kohberger forfeited his close to appeal.

The case's pb detectives, Idaho State Police Lt. Darren Gilbertson and Moscow Police Cpl. Brett Payne, said afterward they inactive didn't cognize his motive.

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"Why did helium instrumentality the plea?" Turvey asked successful a speech Wednesday. "I don't know. I ne'er met him."

By design, helium does not conscionable with defendants whose cases he's moving on, helium said. But helium is alert the defence made arguments astir Kohberger's intelligence wellness and capacity.

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"He was not successful a bully abstraction to marque those kinds of decisions, and that was their statement the full time," helium said. "So the thought that you would spell successful and get him to instrumentality a plea erstwhile helium doesn't cognize everything, doesn't recognize it... Well that's a problem."

"Broken Plea" is successful stores connected April 28.

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