LANSING, Mich (WLMI)  Olympic gold medalist Jordyn Wieber will be back on mid-Michigan soil tonight.  The DeWitt teen is scheduled to fly into Capital Region International Airport in Lansing around 9 o’clock tonight—the 17-year old is fresh off an appearance on Late Night With David Letterman Tuesday night.  Wieber will also be the Grand Marshal for this Saturday’s DeWitt Ox Roast parade.  The parade steps-off at 10AM in downtown DeWitt.