6+ hour, 27+ min ago  (226+ words) The Knoxville marathon needs 1,000 volunteers: sign up here'WVLT KNOXVILLE, Tenn. (WVLT) - Knoxville Marathon organizers have sounded the call, and they need more than 1,000 volunteers to help put the event on. The marathon is slated for April 11 and 12. Race organizers said…...