An Idaho judge has denied Bryan Kohberger’s request to bring in defense experts to offer testimony against the prosecution’s theories about his movements and Amazon shopping history.

“The information Defense seeks to convey can be presented by declarations,” Judge Steven Hippler wrote in an order Tuesday. “Counsel may have the witnesses available by video streaming during the hearing and, should the Court determine it is necessary to hear from the witness, the Court may allow such testimony by video live-stream.”

One expert is David Howell, who the defense planned to call as part of Kohberger’s bid to have his Amazon shopping records and “click activity” hidden from jurors.

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

The defense has separately asked to have Ballance blocked as an expert witness.

Both witnesses were expected to testify at an April 9 motion hearing.

Kohberger is scheduled to go on trial on Aug. 11 in connection with the stabbing deaths of Madison Mogen, 21, Kaylee Goncalves, 21, Xana Kernodle, 20, and Ethan Chapin, 20. The four University of Idaho students were all killed in a 4 a.m. home invasion attack on Nov. 13, 2022.

Kohberger was studying for a Ph.D. in criminology at the neighboring Washington State University.

He faces four charges of first-degree murder, one of burglary, and could face the death penalty if convicted. A judge entered not-guilty pleas on Kohberger’s behalf at his arraignment in May 2023.