" The record is replete with witnesses reporting that they were intimidated
by various authorities. Could all of them, unconnected and unknown to
each other, be having the same fantasies? And if the threats were real, the
obvious question is: why would any law enforcement officer at any level,
or any anonymous phone caller, for that matter, threaten someone if the
assassination was the result of a random act by a lone nut that was no longer
alive? But this is akin to asking why any information about the murder
of John F. Kennedy was ever withheld, let alone still withheld after fifty
years, on the grounds of “national security” if Lee Harvey Oswald was a
minimum-wage loser, with no conspirators, who was out to impress his
estranged wife. "

― Donald Jeffries , Hidden History: An Exposé of Modern Crimes, Conspiracies, and Cover-Ups in American Politics