Sorry for the late reply. If you do a search with “Catcher in The Rye” and Assassinations.” You will find articles giving the background of the association. Conspiracies are fun!
My misunderstanding was based on my ignorance of the obsession which recent (well, in the 1980s) assassins (or would-be assassins) had with the novel.
I had falsely assume that posters here were implying that the novel's main character, Holden Caufield, was a "terroristic type" or that the novel, itself, advocated or encouraged (even indirectly) mass murder.
I haven't read the novel since I was in high school. I remember only that the main character's self-preoccupation and imagined "world-weariness" were a little off-putting.
Regards,