University of Idaho students Ethan Chapin, 20, and Xana Kernodle, also 20, were dating. Chapin spent the night at Kernodle’s rental home, which she shared with a group of other women, when the couple and two other housemates were killed in a home invasion stabbing on Nov. 13, 2022. (Instagram @xanakernodle)

Responding officers found her boyfriend, Chapin, hanging off of Kernodle’s bed, also with extensive wounds and “arterial” blood spatter on the wall nearby.

Kohberger left Goncalves “unrecognizable” with more than 30 stab wounds, many to her face.

He also inflicted a massive face wound to Mogen, who was found leaning against her best friend’s remains. Both are believed to have been attacked in their sleep and were killed under a sheet or blanket in a third-story bedroom.

After his arrest, other inmates reported aggressive and bizarre encounters with Kohberger:

Before his conviction, the killer got on other inmates’ nerves, according to the files.

One called him a “f—ing weirdo” and boasted to a female prisoner on surveillance video that he would have beat him up if he wasn’t worried about repercussions in the county jail.

Another said Kohberger spent hours every day on a tablet video chatting with his mom.

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. (Kyle Green/AP Photo, Pool)

The unnamed inmate told investigators he was watching sports during one of those calls and said “you suck” to a player on TV.

Kohberger, who overheard the comment, allegedly “immediately got up and put his face to the bars” and “aggressively asked if [the inmate] was talking about him or his mother.”

The inmate said this was the only time he witnessed Kohberger lose his temper.

Witnesses reported strange behavior at WSU:

Kohberger was studying for a Ph.D. in criminology at Washington State University in Pullman and working as a teacher’s assistant to help cover the cost. A colleague told police he believed Kohberger “attempted to use his authority as a TA to inappropriately interact with female students,” new documents revealed.

Crime scene tape surrounds an entrance to the Pullman apartment searched Friday morning. (Stephanie Pagones/Fox News Digital)

The witness said Kohberger often talked about wanting a girlfriend and that they discussed this topic on “many occasions.”

The same witness told investigators that he noticed injuries on Kohberger’s face and hands on at least two separate occasions in October and November 2022, just weeks prior to the Idaho student homicides.

One injury was described as “a large scratch on Kohberger’s face” that “looked like the scratches from fingernails.” The witness also said he saw wounds to Kohberger’s knuckles and, when asked about them, Kohberger claimed he’d been in a car accident. While Kohberger had several encounters with local police due to traffic infractions, there’s no known record of a collision.

The TA described Kohberger as intelligent but “selfish,” and claimed he would mislead others about shared assignments and leave others to “complete work meant for Kohberger.”

He added that following the murders of the four students in Moscow that Kohberger started talking “much more than usual,” and his conversations felt like those “from someone who wanted to vent.”