In an interview with Time.com, former CIA officer Robert Baer, host of the History Channel docu-series “JFK Declassified,” endorses the “Castro sorta done it” theory.
The theory that Oswald and Castro were “the presumed assassins” was first promoted by CIA propaganda assets in Miami two days after JFK was killed. In 2012, it was revived, with additional evidence, by former CIA analyst, Brian Latell.
You can read my interview of Latell here where he makes his case.
The problem with the new-old “Castro sorta did it” theory are many, as I explained in Salon. It requires ignoring all that the CIA knew about Oswald, which was much more than the Cubans knew.