Killer whales perform in Shamu Stadium at the SeaWorld Orlando theme park in Florida. SeaWorld says it will not appeal a citation that prohibits trainers from performing with the whales. Phelan M. Ebenhack/AP hide caption itoggle caption Phelan M. Ebenhack/AP The Two-Way SeaWorld Won't Appeal Ban On Trainers Performing With Orcas August 20, 2014 The theme-park company received a citation in 2010 after an orca named Tilikum killed a trainer. Since then, SeaWorld has planned upgrades to its facilities and training. But it still faces criticism.