He served initially in Washington, D.C., and Vienna, before being assigned to the CIA's Western Hemisphere division in March 1962.
[1] In November 1963, following the assassination of John F. Kennedy, Whitten was assigned by Richard Helms to review the CIA's records on Lee Harvey Oswald.
He complained to Helms and James Angleton that this information rendered his initial conclusion "completely irrelevant".
[1] Whitten was moved in 1965 to "an unimportant job reviewing operations", and retired after receiving the Distinguished Intelligence Medal in 1970.
[1] Whitten told the HSCA that Helms' failure to tell the Warren Commission about the Rolando Cubela plot to assassinate Castro "was a morally highly reprehensible act, which he cannot possibly justify under his oath of office or any other standard of professional service.