From the current issue of Outside Magazine:

The Killer in the Pool

Last February, when a 12,000-pound orca named Tilikum dragged his SeaWorld trainer into the pool and drowned her, it was the third time the big killer whale had been involved in a death. Many observers wondered why the animal was still working. But some experts, knowing the psychological toll of a life spent in captivity, have posed a darker question: Was it human error, or can a killer whale choose to kill?

The answer to that question – examined in this fascinating and finely reported piece – is yes.