Man found dead on ground in Northern Iowa state park; cause of death remains mystery

ESTHERVILLE — A 26-year-old man found dead on the ground inside a Northern Iowa state park has been identified, but authorities say the cause and manner of his death remain undetermined as they await additional medical testing. The Emmet County Communications Center received a 911 call at approximately 8:54 a.m. on September 11 reporting an unresponsive man lying on the ground at Fort Defiance State Park near Estherville.