Sheriff’s officials in Pottawattamie County report a Montgomery County man died from injuries he suffered in a collision that took place a little after 8-p.m. Saturday, near Carson. Authorities say 78-year old Harley Sperry, of Villisca, died at the scene, after his pickup truck failed to stop in a construction zone, and struck the rear of a semi tractor-trailer. The semi had stopped at the stoplight on Highway 92, on the western edge of Carson. The driver of the semi was not injured.