Idaho student murders suspect Bryan Kohberger’s lawyers are asking a Boise judge to “sanction” prosecutors over what his defense team calls “inadequate disclosures” through the discovery process, requesting that expert witnesses be excluded from the case as a remedy.

“The bulk of the State’s expert disclosures fail to include opinions and reports. These inadequate disclosures greatly prejudice Mr. Kohberger who is obligated to submit defense guilt phase expert disclosures by January 23, 2025,” Kohberger defense lawyers Anne Taylor, Jay Logsdon and Elisa Massoth wrote in a court filing. “The sanctions considered must be the exclusion of the experts or at a bare minimum, an order compelling proper disclosure and an extension of Mr. Kohberger’s January 23, 2025 deadline.”  

Without the disclosures, they argued, they have no idea what expert evidence to prepare to fight in court.

Madison Mogen, 21, Kaylee Goncalves, 21, Xana Kernodle, 20, and Ethan Chapin, 20, were killed in a 4 a.m. home invasion attack in a six-bedroom home just steps off campus.

Two housemates survived, including one who told police she saw a masked man with “bushy eyebrows” walk out the back door after overhearing sounds of a struggle.

At the time of the murders, Kohberger was studying for a Ph.D. in criminology at the nearby Washington State University, which is about 10 miles away across the state line.