Tilikum, the 34-year-old orca who killed a SeaWorld trainer in 2010, is suffering from a bacterial infection in his lungs. The company said the whale is not responding to treatment. “We are saddened to report that over the past few weeks, Tilikum’s behavior has become increasingly lethargic," SeaWorld said, and added that veterinarians were working to ensure the whale was comfortable. Tilikum’s life was detailed in the 2013 documentary “Blackfish,” which made a case against keeping orcas in captivity for entertainment. — Read it at Reuters via Yahoo