In the days after murdering four University of Idaho students in an off-campus home, Bryan Kohberger’s behavior shifted dramatically and investigators would later find that he had fixated on news coverage of the killings and began paying for items in cash – often wearing gloves – as he avoided the area of the murders.

Bryan Kohberger—who is serving life in prison for killing four University of Idaho students—chatted with detectives about college sports during his 2022 interrogation, per police documents.

Ethan Chapin, 20, Kaylee Goncalves, 21, Xana Kernodle, 20, and Madison Mogen, 21 — shocked the world in 2022. Their killer, Bryan Kohberger, pleaded guilty to their murders at the end of June, but his motives still remain a mystery.