LINCOLN CO, S.D. (MITCHELLNOW) Police are investigating a deadly crash in Lincoln County Saturday night. KELOLand reports a Jeep Grand Cherokee crossed the center line on 275th Street north of Lennox, went into a ditch, and rolled. A 51-year-old Sioux Falls man riding as a passenger was thrown from the SUV and died at the scene. The 21-year-old driver, also from Sioux Falls, was hospitalized with life-threatening injuries. Authorities say the driver wore a seatbelt, but the passenger did not. The crash remains under investigation. For more crime stories from MitchellNow.com, click here.