Idaho officials publicly released the probable cause affidavit in the case against accused killer Bryan Kohberger.
Kohberger, 28, is accused of fatally stabbing 20-year-old Ethan Chapin of Conway, Washington; 21-year-old Madison Mogen of Coeur d’Alene, Idaho; 20-year-old Xana Kernodle of Avondale, Arizona; and 21-year-old Kaylee Goncalves of Rathdrum, Idaho on November 13.
Murder victims from left: Kaylee Goncalves, Ethan Chapin, Xana Kernodle, Maddie Mogen
Bryan Kohberger arrived to Moscow, Idaho late Wednesday evening where he was served with an arrest warrant and booked at the Latah County prison.
The court documents revealed a knife sheath with Bryan Kohberger’s DNA was left at the crime scene.
“The sheath was later processed and had ‘Ka-Bar’ ‘USMC’ and the United States Marine Corps eagle globe and anchor insignia stamped on the outside of it,” Idaho police officer Brett Payne wrote. “The Idaho state lab later located a single source of male DNA (suspect Profile) left on the button snap of the knife sheath.”
The killer murdered the victims around 4:17 am, according to the court documents based on testimony from one of the surviving roommates.
A nearby surveillance camera picked up a dog barking (Kaylee Goncalves’ dog) at 4:17 am at the same time the surviving roommates hear someone crying.
NBC News reported:
Male DNA left on a button snap of a knife sheath was used to link a doctoral student in Washington state with the slayings of four University of Idaho students in November — and a surviving roommate came basically face-to-face with him the night of the killings, according to court documents unsealed Thursday.
A probable cause affidavit prepared by Moscow, Idaho, police Officer Brett Payne lays out how investigators used video surveillance in the area to connect the quadruple homicide with a white Hyundai Elantra driven by Bryan Kohberger, 28.
Upon arriving at the off-campus apartment house on Nov. 13, Payne wrote that he noticed a tan leather knife sheath laying on the bed next to one of the victims, Madison Mogen.
It was also revealed that one of the surviving roommates, Dylan Mortensen (a female) actually saw the killer as he was leaving the home after the murders.
Dylan Mortensen saw the killer as he was leaving. He was wearing a face mask and gloves.
She saw his bushy eyebrows as he walked by the front door.
Police said the killer also left a shoe print behind at the crime scene.
Watch this readthrough and analysis of the probable cause affidavit: