Markle Heads to Duke Posted by VenuesNow Staff | May 2, 2012 | Faces & Places The Duke Energy Convention Center and Global Spectrum have appointed Justin Markle as director of Sales and Marketing To access this post, you must purchase Subscribe to VenuesNow – 1 Year, Subscribe to VenuesNow – 2 Years or Subscribe to VenuesNow – 3 Years. If you are already a member of VenuesNow, please login here: log in