With a plea deal that assures that Bryan Kohlberger will spend the rest of his life in prison, the question of whether he would face some sort of justice for murdering four students at the University of Idaho in 2022 has been addressed. However, there's one query that may never have a satisfactory answer: why did he do it?
Aside from responses required by the court, Kohlberger remained silent during his sentencing hearing. Not having to explain his deadly actions was part of the plea bargain that took the death penalty off the table, which was not well-received by some of the family members of the victims. Judge Steven Hippler noted that even if he could compel Kohlberger to speak, how could anyone trust the veracity of his words?
With pre-trial motions on his bushy eyebrows (in) and autism spectrum disorder (out), the trial that was scheduled to begin on August 11, 2025, was expected to captivate the nation. Instead, an admitted murderer will spend the rest of his days behind bars while we puzzle over his motivation to end four lives of people he didn't know.
Murder in Moscow
In the early hours of November 13, 2022, four students at the University of Idaho — Ethan Chapin, Madison Mogen, Kaylee Goncalves, and Xana Kernodle — were stabbed and killed in the off-campus house that served as their home. The ensuing police investigation led to the arrest of Kohberger, a graduate student studying Criminal Justice at Washington State University, weeks later at his parents' Pennsylvania home.
A knife sheath found at the scene of the crime contained DNA, but it didn't match anyone in the Federal Bureau of Investigation's (FBI) database. Authorities accessed public ancestry websites, which gave them a list of possible suspects that included Kohberger. A search of garbage at his parents' house provided a DNA match. Kohberger was arrested and charged with four counts of murder in the first degree on December 29, 2022.
Motions in Motion
As might be expected in a case carrying serious and potentially deadly ramifications, both the prosecution and Kohberger's defense team inundated the court with motions in limine as each side scrabbled for advantages. This included having the death penalty being on the table as a possible punishment.
Two other roommates of the victims, who were home at the time of the murders but weren't attacked, saw a man walking through the house at around 4 a.m. wearing a balaclava, which is a ski mask that covers everything but the eyes and mouth. One told police she distinctly remembered that the person had "bushy eyebrows," which match Kohberger's eyebrows. Prosecutors intended to have her testify.
The defense sought to have her testimony and any mention of bushy eyebrows barred from evidence. Citing it as unreliable and irrelevant, they argued that the witness had been drinking, was sleepy, and only saw the figure for seconds. She could not provide enough description to work with a police sketch artist.
District Judge Steven Hippler disagreed, stating that this sort of testimony was exactly what cross-examination was for and that the defense would get their chance to challenge her observations and memory on the stand.
The judge also ruled on motions concerning a number of conditions Kohberger allegedly suffers from. The defense team had initially moved to have the death penalty barred due to Kohberger's autism spectrum disorder, but the courts ruled against them in 2024. According to the defense, Kohberger also suffers from obsessive-compulsive disorder and developmental coordination disorder.
Judge Hippler ruled that while Kohberger's alleged conditions could be mentioned during voir dire, the defense couldn't use expert testimony as a defense unless Kohberger takes the stand at some point. Arguing that nothing he'd seen from Kohberger's courtroom demeanor suggested his disorders would unduly influence the jury, Judge Hippler added that unnecessary explanations of the conditions would cause an already lengthy legal process to drag on further.
In a split decision, prosecutors were awarded the right to use "murder" and "murderer" in the courtroom, but the defense's motion to ban "psychopath" and "sociopath" from being used to describe Kohberger was also granted.
Searching for Motivation
The defense team had planned on not allowing Kohlberger to take the stand. Trying to figure out why he killed the four students has continued to perplex and frustrate both professional criminal profiles and amateur sleuths. Kohlberger had no academic, social, or professional connections with them. He neither took trophies nor engaged in any sexually motivated behavior.
With Kohlberger's refusal to speak during his sentencing hearing, there may never be an accurate explanation for why he did what he did. The best to be hoped for is that the survivors and loved ones of the victims can somehow find a way to move on.
Related Resources
- Cross-Examination Tips That Will Help Your Case (FindLaw's Practice of Law)
- What Is a Motion? (FindLaw's What To Expect When Going to Court)
- Jury Selection (FindLaw's Criminal Procedure)
