Court documents detailing how police connected suspect Bryan Kohberger to the murders of four University of Idaho students were unsealed Thursday. Kohberger faces four counts of first-degree murder and burglary after Madison Mogen, Kaylee Goncalves, Xana Kernodle and Ethan Chapin were found stabbed to death Nov. 13. An affidavit shows police recovered a knife sheaf from one of the victim’s bedrooms that had a DNA sample on it.  DNA evidence obtained from the knife at the scene and from 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 say cellphone data indicates Kohberger turned off his cellphone during the killings. Before data cut out at 2:47 a.m., it showed Kohberger left from his apartment and traveled south through Pullman. When Kohberger’s phone reports back to the network at 4:48 a.m., the phone was near Blaine, Idaho, which is south of Moscow. Data shows Kohberger then returns to his Pullman apartment. Read the full unsealed affidavit, which explains the basis for Kohberger's arrest, here: https://www.king5.com/article/news/crime/idaho-murders/complete-idaho-murders-court-documents/281-03884767-8bea-48fd-883e-fa2e83acbaa7