Hugh Pickens DOT Com writes: There's an interesting read at National Geographic by Kenneth Brower that probes the case of Tilikum, the homicidal killer whale, who killed his first trainer, 20-year-old Keltie Byrne in 1991. Then in July 6, 1999, a 27-year-old man who stayed after the park closed and evaded security to enter the orca tank was found dead and nude, draped over Tilikum’s back with his genitals bitten off. Tilikum's most recent victim was Dawn Brancheau, the SeaWorld trainer he crushed, dismembered, and partially swallowed in 2010. "Almost all students of orca believe that they are deranged by captivity, some more than others. Tilikum's record puts him at one end of a continuum. There have been dozens of attacks on trainers by an assortment of orcas in the marine parks around the world. [The movie] "Blackfish" shows video from several of these episodes at SeaWorld," writes Brower. "What is remarkable about Orcinus orca in marine parks is not these rare episodes. What is remarkable is their monumental forbearance." For its part SeaWorld is attempting to cast the filmmakers as the true villains, characterizing them as anti-captivity zealots. The company says "Blackfish" is "inaccurate and misleading and, regrettably, exploits a tragedy that remains a source of deep pain for Dawn Brancheau's family, friends and colleagues."