Ailing orca J50 likely dead: whale researcher

SEATTLE — Teams searched Thursday for a sick, critically endangered orca in the waters of Washington state and Canada, but a scientist who closely tracks the population in the Pacific Northwest said he believes the whale known as J50 has died.
Experts have been preparing last-ditch efforts to save the nearly four-year-old, emaciated whale — including the possibility of capturing and treating the orca.
Officials said they would intervene and rescue the orca if she became stranded or s