John Armstrong's Harvey and Lee

[Charles Drago]

Armstrong came up with the doppleganger [sic] theory[.]

He most certainly did not.

It was philosopher and first generation JFK assassination researcher Richard H. Popkin who, in 1966, published The Second Oswald -- the first dedicated, book-length examination and deep political contextualization of the multi-LHO phenomenon.

The argument later was expanded upon by, among others, George Michael Evica in conference presentations and in his own books, And We are All Mortal and A Certain Arrogance.

Thanks to those and subsequent related works, there can be no reasonable doubt that the doppelgänger gambit, as I have coined the term, was and remains a critical component of the ongoing cover-up.

John Armstrong's challenging, perhaps in certain subsets flawed hypothesis remains in its general contours consistent with what we might expect to observe in mid-20th century iterations of a very old game.