No, the CIA didn't assassinate Elvis. Elvis is alive and well living in the island nation of IDS, Island of "Dead" Stars. He is enjoying an easy lifestyle, along with Jim Morrison, Janis Joplin, John Kennedy, his brother Teddy, as well as Martin Luther King Jr and many others.
The national bird of IDS is the dove, the national plant is Cannibis, the national anthem is Queen's 'We Will Rock You'.