Retired FBI agent Christopher Whitcomb’s book, Broken Plea, cites an interview in which Maryann Kohberger called her son Bryan "my angel" and denied he could have carried out the 2022 University of Idaho murders. The arrest-day interview, included in the book, reflects a mother’s insistence of innocence even after her son pleaded guilty and received a life sentence. Prosecutors tied Kohberger to the killings using DNA from a knife sheath (via a familial match), cell-phone data, surveillance footage and a witness account. Whitcomb also reproduces a series of abstract letters Kohberger wrote from jail to family members and the family dog, Scout.
‘My Angel’: New Book Reveals Arrest-Day Interview With Bryan Kohberger’s Mother and His Unusual Jail Letters
‘My angel’: Book reveales Kohberger’s mother’s interview and killer’s letters from jail
Retired FBI agent Christopher Whitcomb’s new book, Broken Plea: The Explosive Search for Truth Behind the Idaho Murders, cites a previously unpublished interview in which Maryann Kohberger described her son Bryan as "my angel" and insisted he could not have committed the 2022 killings at the University of Idaho.
, Wednesday, July 23, 2025, in Boise, Idaho, for brutally stabbing four University of Idaho students to death nearly three years ago. (AP Photo/Kyle Green, Pool)
Arrest-Day Interview
According to Whitcomb, the interview occurred the day Bryan Kohberger was arrested at his parents’ home in Pennsylvania. In the conversation with FBI agents, Maryann Kohberger strongly denied her son’s involvement.
Bryan Kohberger appears at the Ada County Courthouse for his sentencing hearing July 23, 2025, in Boise, Idaho, for brutally stabbing four University of Idaho students to death nearly three years ago. (AP Photo/Kyle Green, Pool)
"My son would not do this. I will stake my life on that. There’s a mistake; something is wrong somewhere. And that’s what I believe. And that’s what I know in my heart," she told investigators.
She described Bryan as nonviolent and reserved — a "homebody" who focused on school, kept few friends and largely avoided drinking or partying. Maryann told agents she had no prior concerns about his behavior before the arrest.
Bryan Kohberger is is seen in the Ada County Courthouse after his sentencing hearing, Wednesday, July 23, 2025, in Boise, Idaho, for brutally stabbing four University of Idaho students to death nearly three years ago. (AP Photo/Kyle Green, Pool)
Evidence Cited by Prosecutors
Kohberger later accepted a plea deal and is serving a life sentence after admitting to the murders of Kaylee Goncalves, Maddie Mogen, Xana Kernodle and Ethan Chapin. Prosecutors said their case relied on multiple lines of evidence:
Bryan Kohberger appears at the Ada County Courthouse, July 2, 2025, in Boise, Idaho. (AP Photo/Kyle Green, Pool)
- DNA Evidence: DNA found on a knife sheath was matched through a familial DNA hit tied to trash collected from the suspect’s household.
- Cell-Phone Data: Records placed Kohberger near the victims’ residence and showed periods of being offline during the attacks.
- Surveillance: Video captured a white Hyundai Elantra linked to the investigation.
- Witness Account: A roommate reported seeing a masked man around the time of the killings.
Unusual Letters From Jail
Whitcomb also includes excerpts from a series of abstract, poetic letters Kohberger wrote from jail to family members and the family dog, Scout. The letters are notable for their metaphoric language and unconventional tone.
Bryan Kohberger appears at the Ada County Courthouse, for his sentencing hearing, Wednesday, July 23, 2025, in Boise, Idaho, for brutally stabbing four University of Idaho students to death nearly three years ago. (AP Photo/Kyle Green, Pool)
To the dog Scout: "Earlier, you and I, unbeknownst to you, 'communicated' — I have no doubt that your Heart was conscious of what I intended . . ." — signed "Brother."
To his sister: "Dear Amandayzz, In the abstract sense, and via intuitive capacities, the August effect can be analogized to the gravitation of Hearts promise unto the green pastures ahead . . . Always in your Heart, Bernnzz."
In a longer family letter he writes about "ascending to new peaks" and a "Singular Heart," signing several nicknames including "Buddy" and "Brother." Whitcomb reproduces these passages to illustrate Kohberger’s writings while in custody.
Bryan Kohberger appears at the Ada County Courthouse, for his sentencing hearing, Wednesday, July 23, 2025, in Boise, Idaho, for brutally stabbing four University of Idaho students to death nearly three years ago. (AP Photo/Kyle Green, Pool)
Book Context
Broken Plea compiles investigative files, court records and Kohberger’s jail writings as part of Whitcomb’s account of the search for answers in a widely publicized case. The book frames the arrest-day interview and the jail correspondence as elements that deepen the public record surrounding the investigation and its aftermath.
Bryan Kohberger appears at the Ada County Courthouse, for his sentencing hearing, Wednesday, July 23, 2025, in Boise, Idaho, for brutally stabbing four University of Idaho students to death nearly three years ago. (AP Photo/Kyle Green, Pool)
Note: This article summarizes material presented in Whitcomb’s book and public court information. The quotes and excerpts referenced come from the book’s reporting on interviews and documents.
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