A report from Utah Highway Patrol said Royce Wayne Munns was traveling southbound on a 1982 Suzuki near milepost 352 at about 10:45 p.m. The bike hit a mattress that was blocking the lane of travel near that location. Munns was thrown from the motorcycle, suffering severe head trauma. He was not wearing a helmet.
The southbound lanes were closed for approximately two hours.
UHP Lt. Lee Perry said his department later got a call from a man who said the mattress may have fallen from his vehicle in that area. The incident is still under investigation.