A Callao man is dead after a semi struck his tractor on Highway 36, two miles west of Callao, just before 4 Wednesday. The State Highway Patrol says the tractor driven by 62-year-old Nels Magnuson was hit by a semi driven by 58-year-old Robert Ives of Nevada. Both vehicles went off the road, hit a guardrail, and overturned. Magnuson was ejected and pronounced dead at the scene about an hour later. Ives had minor injuries and was taken to Macon.