Showrunner Glen Mazzara leaves The Walking Dead

The Walking Dead is killing off Showrunners faster than Rick Grimes with a hatchet in a Walker nest. On the heels of the announcement that Walking Dead had been picked up for a fourth season comes this shocker: Showrunner Glen Mazzara is out. Mazzara, of course, took over for original showrunner Frank Darabont after… » 12/21/12 10:40am 12/21/12 10:40am