ORLANDO, Fla. — Tilikum, the SeaWorld killer whale that inspired the anti-captivity documentary “Blackfish” after killing an Orlando trainer, has died. SeaWorld said Tilikum had been battling a serious and persistent lung infection. Acquired by SeaWorld in 1992, Tilikum helped SeaWorld grow its captive orca collection by fathering more than a dozen offspring. But Tilikum also…