Wikipedia
Tilikum (born c. November 1981), nicknamed Tilly, is a bull orca. He was captured in 1983 at Hafnarfjörður, near Reykjavík, Iceland; after a year he was transferred to Sealand of the Pacific in South Oak Bay, British Columbia. He was transferred in 1992 to SeaWorld Orlando, Florida.
Tilikum has been involved in the death of three people: a trainer at the now-defunct Sealand of the Pacific in British Columbia, a man trespassing on SeaWorld Orlando's property, and a trainer at Orlando's SeaWorld. Tilikum is heavily featured in CNN Films' 2013 documentary Blackfish.
He has sired 21 calves, of whom ten are still alive. In the Chinook Jargon of the Pacific Northwest, the name means "friends, relations, tribe, nation, common people". SeaWorld announced in March 2016 that Tilikum's health was deteriorating and that it is thought that he has a lung infection caused by a rare and resistant bacterium. In May 2016, it was reported that Tilikum's health is improving.