CNN
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A Washington court unsealed search warrant documents used to retrieve evidence from the home and office of Bryan Kohberger, the 28-year-old accused of killing four University of Idaho students in November, according to documents made publicly available by Law & Crime Wednesday.

“These warrants and associated applications were sealed, due to the sensitive nature of the investigation at that time. Since then, an extensive probable cause affidavit has been unsealed in Latah County, Idaho, which has alleviated the need for sealing of the Return of Service here in Washington,” the court documents say.

Read the unsealed search warrants in the Brian Kohberger investigation

Kohberger faces four counts of first-degree murder in the fatal stabbings of Kaylee Goncalves, 21; Madison Mogen, 21; Xana Kernodle, 20; and Ethan Chapin, 20.

The suspect was a graduate student at Washington State University’s Department of Criminal Justice and Criminology and lived in Pullman, Washington, at the time of his arrest last month.

Items retrieved from his residence included “a collection of dark red,” cuttings from a pillow of reddish-brown stain, and part of a mattress cover with stains.

Other items listed include a nitrate-type black glove, store receipts and a Dickies tag, several hair strands, dust from a vacuum, a Fire TV stick and a computer tower, among other things.

There is no mention of potential items retrieved from the suspect’s office. It is not yet clear if anything was retrieved, or if information surrounding the execution of that search warrant is still under seal.