Bryan Kohberger is asking a Boise judge to exclude evidence of his Amazon purchase history and other activity on the shopping site from his upcoming trial in the deaths of four University of Idaho students.

Defense attorney Elisa Massoth argued that no Amazon evidence, including “click activity” on the app, should be introduced at trial – in part because the term is vague and because prosecutors have allegedly failed to define it or describe the nature of expert testimony prosecutors want to introduce.

“The Defense asserts that with the limited disclosures made by State, lack of raw data, lack of complete data, lack of disclosure of expert opinion, lack of explanation of ‘Amazon click activity’ or any analysis related there to, amounts to cherry picked limited data that does not show a full picture, compared to warrants that requested extensive data,” Massoth wrote.

Mogen and three friends were all killed by multiple stab wounds.

The other victims were Kaylee Goncalves, 21, Xana Kernodle, 20, and Ethan Chapin, 20.

Kohberger’s trial is scheduled to begin on Aug. 11 in Boise. He could face the death penalty if convicted.

A judge entered not guilty pleas on his behalf at his arraignment in May 2023.