RENO, Nev.—A rural Nevada man accused of kidnapping and killing an 18-year-old Fernley woman last month fatally shot Naomi Irion and buried her body in a remote high-desert area, according to a new criminal complaint filed Tuesday. Lyon County District Attorney Stephen Rye filed the amended criminal complaint adding first-degree murder and other crimes to the kidnapping charge already facing Troy Driver, 41, of Fallon. Driver is accused of kidnapping Irion from a Walmart parking lot in rural Fernley on March 12, and killing her on or before March 25. That’s the day Driver was arrested for kidnapping. Four days later, investigators acting on a tip found her body in a grave just across the Churchill County line. In addition to burying Irion’s body, the new complaint says Driver disposed of tires from his truck and destroyed or hid her cellphone in an effort to eliminate evidence that might help …