The Vanderburgh County Sheriff’s Office says the subject of a Silver Alert Issued Saturday was found dead Sunday in an open field in Knight Township. 77-year-old Ronald Hayes went missing Friday night when he went to pick up dinner. Authorities say he apparently became disoriented and drove to a remote part of the Knight Township river bottoms where his car became stuck. Hayes walked nearly two miles before collapsing. Police say there were no indications of foul play.