Would Bryan Kohberger, a Criminology student, leave the knife sheath on the scene? Only if he wanted to get caught.
"He then saw an object — a tan leather knife sheath — on the bed next to Mogen. "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," 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 most damning piece of evidence is the fact that a DNA sample taken from Kohberger's family's home in Pennsylvania matched DNA found on the snap button enclosure of a knife sheath found at the murder scene. The sheath is described as 'tan leather' with the USMC (United States Marines Corps) and 'KA-BAR' insignia stitched on its exterior. A similar sheath can be purchased online for less than $20. According to Moscow PD Officer Brett Payne - a rookie who joined the force in 2020 - the sheath was found on a single bed next to the stabbed corpses
