In a March 7, 2011 photo, Kelly Flaherty Clark, left, director of animal training at SeaWorld Orlando, and trainer Joe Sanchez work with killer whales Tilikum and Trua, right, during a training session at the theme park’s Shamu Stadium in Orlando, Fla. SeaWorld Orlando officials say Tilikum, the killer whale that drowned a trainer at the facility last year, is slated to perform for the first time since the death, in the park’s “Believe” show, beginning Wednesday morning, March 30, 2011. (AP Photo/Phelan M. Ebenhack)