911 Audio of Call Placed After Two Chimpanzees Mauled St. James Davis

"One was at his head, one was at his foot. But all that time ... he was trying to reason with them," a sobbing LaDonna Davis told ABC's Good Morning America. "I couldn't do anything."Davis, 64, and her husband, St. James Davis, were visiting Animal Haven Ranch near Bakersfield on Thursday when two male chimps escaped their enclosure and attacked the couple.Click on title to hear the 911 call...Graphic