Royall Storing -
Richard Trask NEVER, as far as I'm aware, said or implied or suggested either in writing or verbally, that Harry McCormick "emerged from the shadows" or words to that effect "when Zapruder went to have the 3 copies made". McCormick was the person who first spoke to Zapruder in Dealey Plaza, put Zapruder and Forrest Sorrels in contact with one another, and was then present throughout the processing of the camera-original film.
Please cite title, chapter and page number of any Trask book which claims otherwise.
Thank you.