PRESTON, Minn. – An autopsy concluded that an Iowa man found dead on a UTV trail near the border town of Granger was victim of “multiple blunt force injuries.” Fillmore County investigators had suspected that Cale Jackson, 23, of Cresco, was struck by a hit-and-run UTV driver. The accident was August 4. Meanwhile, Brian Nelson, 50, of Harmony, has been accused on seven counts. These include criminal vehicular homicide while under the use of alcohol. Fillmore County deputies said Nelson admitted to drinking.