Authorities say a freshman at the University of Northern Iowa was struck and killed by a passing tractor-trailer while outside his car on a highway overpass. Cedar Falls Public Safety says 19-year-old Isaac Roerig of Sioux City, was hit Friday on U.S. Highway 20. He was taken to a hospital where he later died. A Facebook post by Bishop Heelan Catholic High School in Sioux City said Roerig was a 2020 graduate of the school. He was studying music education at UNI.
