In court records that were unsealed on Thursday, an investigator claimed that the suspect’s DNA was discovered on a knife sheath found at the site and that cellphone data revealed that he had frequented the area around the victim’s home in the months before the attack.
Minutes before Bryan Kohberger, a 28-year-old criminal justice doctoral student at nearby Washington State University, was scheduled to appear in court following his Wednesday extradition from Pennsylvania, where his parents reside and where he was arrested, the affidavit prepared by Brett Payne, a police corporal in Moscow, Idaho, was made public.
He is accused of felony burglary and four counts of first-degree murder in connection with the attack on November 13.
The button of a leather knife sheath discovered in the rental residence where the victims were slaughtered, per the recently released court records, contained DNA from a lone person, later identified as Kohberger, a blade
Although there is no evidence that Kohberger served in the military, the item had a Marine Corps symbol and was discovered at the site.
According to a court document, a woman who shared residence with the suspect informed police that she heard sobbing during the early morning attack and opened her bedroom door to discover a masked man wearing a black mask.
According to the police investigator, she claimed to have been in “frozen astonishment” as the man she did not identify moved by her and toward a glass sliding door. She then locked the door before returning to her room.
A white automobile, later identified as a Hyundai Elantra, was seen driving past the house on surveillance video taken close to it three times early on Nov. 13 before returning a fourth time at around 4:04 a.m. 16 minutes later; the automobile was seen on surveillance footage exiting King Road “at a fast rate of speed,” according to Payne.
Later, a different camera captured the exact vehicle driving in the direction of Pullman.
Between late June and the night of the killings, Kohberger traveled to the vicinity of the victims’ home at least a dozen times, according to location data from his smartphone, investigators said.
The victims, Kaylee Goncalves, Madison Mogen, Xana Kernodle, and Ethan Chapin, have not been identified by the police, and it is unknown whether they knew Kohberger.
Kohberger agreed to be deported to Idaho after being detained at his parents’ house in eastern Pennsylvania last week.
Jason LaBar, the top public defense for Monroe County, Pennsylvania, where Kohberger was represented, said Kohberger was eager to be cleared and that once in Idaho, he would be defended by the chief public defender for Kootenai County.