Bryan Kohberger: All About the Ph.D. Student and the Idaho Murders He Committed

In November 2022, the brutal killings of four University of Idaho students in the quiet college town of Moscow, Idaho, stunned the nation. Ethan Chapin, Kaylee Goncalves, Xana Kernodle and Madison Mogen were stabbed to death in the middle of the night in their off-campus home. For weeks, the case remained unsolved, gripping true crime followers and sparking widespread fear. Then, in December 2022, police arrested a 28-year-old Ph.D. criminal justice student named Bryan Kohberger.

More than two years later, in July 2025, Kohberger confessed to the killings in a plea deal that spared him the death penalty, but the mystery surrounding the motive of the murders remains.

Born in 1994, Kohberger was the youngest of three children and was raised in a working-class town near Pennsylvania’s Pocono Mountains. An awkward and withdrawn youth, he was academically successful but faced serious personal issues, including allegedly using substances in his late teens. Kohberger reportedly struggled in social situations and had limited success in relationships, with some classmates describing him as “creepy” toward women; some have suggested his feelings of isolation and rejection by women are similar to those who associate with incel-like ideology. His lawyers revealed in April 2025 that Kohberger had "recently" been diagnosed with Autism Spectrum Disorder and previously stated that he has obsessive-compulsive disorder.

Despite these struggles, he earned a bachelor’s and master’s degree from DeSales University. In the summer of 2022, Kohberger moved across the country to begin a Ph.D. program at Washington State University in Pullman, less than 10 miles from Moscow, Idaho, the site of the gruesome murders.

But while Kohlberger seemingly found his calling in the fields of psychology and criminology, his areas of interest now seem chillingly curious. He took classes with his fellow students in forensic psychology, but unlike them, he seemed to develop an interest in the antisocial behavior of famous killers, watching online videos and articles about how killers think and act. His former DeSales professor, Dr. Katherine Ramsland, later noted to NewsNation, “He had a fascination with the criminal mind,” also admitting she worried that what he learned may have informed—or even inspired—his actions. 

At WSU, he continued to study the role of emotion and morality in violent offenders, even sending out an online survey asking former criminals to describe their thoughts and feelings during the commission of a crime.

Prosecutors would later state that Kohlberg spent hours scrolling through the social media accounts of young women at both WSU and the nearby University of Idaho, and he may have become fixated on the girls living in a house off campus. Surveillance cameras showed his car driving by the house 12 times before the murders. 

In the early morning hours of November 13, 2022, the four victims were killed in their bedrooms, stabbed with a sharp knife. Two other roommates were home but were left unharmed. The unscathed housemates began frantically texting and calling each other and their fellow roommates, but received no response. Prosecutors believe Kohberger relied on his education and research to try to cover up the murders, turning his cell phone off so its location wouldn’t register during the time of the crime and methodically cleaning the bloody scene. 

But he left one telling clue behind: the sheath of the knife used, which matched one he’d bought online eight months earlier. Investigators were able to trace DNA on the sheath back to Kohberger. Six weeks after the murders, Kohberger was arrested at his parents’ house in Pennsylvania. 

For more than two years, Kohberger maintained his innocence, and his defense team challenged the prosecution’s evidence. But just days before his trial was scheduled to begin in July 2025, Kohberger made a stunning turnaround, accepting a plea deal in which he claimed responsibility for the crimes. 

The plea not only spared the victim’s families the painful experience of a lengthy trial, but it meant Kohberger would no longer face the death penalty. On July 23, 2025, Kohberger was sentenced to four consecutive life sentences without the possibility of parole, plus 10 additional years for a burglary charge. 

Despite this resolution, the case has left lasting scars on the families and the Moscow, Idaho, community. During sentencing, Kohberger declined to provide a motive or explanation for the murders. And as Kohberger begins his life behind bars, many are still grappling with how a man so immersed in the study of crime could become the subject of one of the most horrifying cases in recent memory.