A zombie character in an exhibit inspired by the television series "The 

A zombie character in an exhibit inspired by the television series "The Walking Dead" screams at onlookers during the Preview Night event on Day 1 of the 2013 Comic-Con International Convention on Wednesday, July 17, 2013 in San Diego, Calif. (Photo by Chris Pizzello/Invision/AP)
Associated Press
A zombie character in an exhibit inspired by the television series "The Walking Dead" screams at onlookers during the Preview Night event on Day 1 of the 2013 Comic-Con International Convention on Wednesday, July 17, 2013 in San Diego, Calif. (Photo by Chris Pizzello/Invision/AP)
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