Four University of Idaho students were found dead on Nov. 13, 2022. (Angela Palermo/Idaho Statesman/Tribune News Service via Getty Images)

Kohberger wrote that he boxed daily at Jesse Harris’ gym on a 2015 job application previously obtained by Fox News Digital. He explained that the training helped him develop discipline and maintain physical fitness.

Initially, Marie Bolger had also been summoned to court, but her name was removed from a later filing. In a 2023 interview with the Daily Mail, Bolger said Kohberger was one of her brightest students and one of only two she had recommended for Ph.D. programs in a decade as a criminology professor at DeSales University in Pennsylvania.

Kohberger obtained a master’s degree from DeSales before moving on to Washington State University, about 10 miles from the off-campus home where he is accused of killing Kaylee Goncalves, 21, Madison Mogen, 21, Xana Kernodle, 20, and Ethan Chapin, 20.

Bolger told the outlet she had never met Kohberger in person and only taught him over email and Zoom during the height of the coronavirus pandemic. She helped him work on his graduate thesis, which centered on “how and why criminals commit their crime,” she said.

Brian Kohberger was arrested for four counts of alleged first-degree murder and one count of burglary in Monroe County, Pennsylvania, in December 2022. (Ada County Sheriff’s Office)

The other witnesses include Ann Parham, an adviser at the high school Kohberger attended, Ralph Vecchi, Maggie Sanders and Brandon Andreola. 

Prosecutors allege he left his DNA on a knife sheath detectives found with Mogen’s body. They also plan to introduce some of his DeSales homework as evidence that he was well-versed in concepts related to crime scene handling and the transfer of evidence.

Kohberger could face death by firing squad if convicted on any of the four charges of first-degree murder he faces. He is also charged with felony burglary in connection with the 4 a.m. home invasion attack.