Phoenix's Zombie Walk event laid to rest

For the past seven years tens of thousands of zombies have roamed the streets of downtown Phoenix. The Zombie Festival has grown more and more popular every year. But organizers are driving a stake through it. In 2009, it started as a free family event, and it's grown from 200 to 20,000 people. So why get rid of a good thing? The organizers say their resources would be better spent on other events.