New details in the case of convicted Idaho murderer Bryan Kohberger have been unsealed, revealing that the killer chased one of the victims.

Hundreds of documents were released by police after Bryan Kohberger was sentenced to life in prison for the murders of Kaylee Goncalves, Madison Mogen, Xana Kernodle and Ethan Chapin.

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.