This article is from the Dr. Pepper FAQ, by Christopher Flaherty with numerous contributions by others.
I tell ya, I never in a million years expected this question to show
up. I mean, I admit it's a pet theory of mine that almost everything
in the United States has some sort of Kennedy Assassination connection
to it, but after seeing this one I might have to remove the "almost"
from the theory!
"Okay, smart guy, what is the connection?"
In the book, Conspiracy Of One (1990, The Summit Group), author Jim
Moore presents a variety of reasons why he believes Lee Harvey Oswald
was the sole assassin of U.S. President John F. Kennedy. One of those
reasons is on page 53, detailing the period immediately after the
assassination when Oswald was spotted in the lunchroom of the Texas
School Book Depository:
Oswald...put a nickel in the soda machine and selected a Coca-Cola.
It may be that this single action on Oswald's part holds the key to
his guilt. Oswald habitually drank Dr Pepper. There can be only one
realistic explanation for a miser like Oswald to fail to select his
soft drink of choice-he was nervous. Three other possibilities exist,
1. Oswald really bought a Dr Pepper and every witness questioned
recalled it as a Coca-Cola
2. The soda machine was out of Dr Pepper.
3. The soda machine-a Coca-Cola product, malfunctioned in favor of its
Next to one of those sentences was a footnote, citing The Day Kennedy
Was Shot (1968, Funk & Wagnalls; 1992 HarperPerennial) by Jim Bishop.
Sure enough, on page 183 of Bishop's book, there is a less verbose
description of the same event:
Oswald dropped a coin in the soda machine. He got a Coca-Cola. This
was nervousness because he invariably drank Dr Pepper.
Who knew he wanted to be a Pepper, too?