Investigators reportedly found DNA on a knife sheath and used cellphone data to track down the suspect in the murder of four University of Idaho students in November. According to the documents that were unsealed Thursday, investigators found a knife sheath, with "Ka-Bar" 'USMC" and the United States Marine Corps eagle globe and anchor insignia stamped on the outside of it, in the bedroom of one of the victims.  DNA evidence obtained from the knife at the scene and from Bryan Kohberger's parents' house was tested at the Idaho State Lab, court documents say. The results showed the DNA from the parent's house was almost certainly from the father of the person whose DNA was on the knife. Investigators also reportedly obtained multiple videos from the King Road neighborhood in Moscow, Idaho allegedly showing 28-year-old Kohberger's Hyundai Elantra driving around several times beginning at 3:30 a.m. on Nov. 13. Court documents said the vehicle was seen leaving the area at a high rate of speed at around 4:20 a.m. Investigators believe the killings happened between 4 a.m. and 4:25 a.m. READ THE FULL STORY: https://www.king5.com/article/news/crime/idaho-murders/court-documents-suspect-dna-knife-sheath-university-idaho-student-killings/281-dc6bdc9c-bba0-4e0b-a97e-7833480fa88c