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Tilikum, nicknamed Tilly, was a captive male orca who spent most of his life at SeaWorld Orlando in Florida. He was captured in Iceland in 1983; about a year later, he was transferred to Sealand of the Pacific near Victoria, British Columbia, Canada. He was subsequently transferred in 1992 to SeaWorld in Orlando, Florida, where he sired 21 calves throughout his life. Tilikum was heavily featured in CNN Films' 2013 documentary Blackfish, which claims that orcas in captivity suffer psychological damage and become unnaturally aggressive. Of the four fatal attacks by orcas in captivity, Tilikum was involved in three: Keltie Byrne, a trainer at the now-defunct Sealand of the Pacific; Daniel P. Dukes, a man trespassing in SeaWorld Orlando; and SeaWorld trainer Dawn Brancheau.