Literal killer whale Tilikum—the six-ton orca that thrashed a 40-year-old trainer to death in front of a live audience last year—has returned to Sea World's increasingly harrowing killer whale show, "Believe." Apparently the show is an "important component" in Tilikum's "physical, social, and mental enrichment," and trainers will only interact with him from a distance. [NYDN, image via AP]