[[The Catcher in the Rye]]
Mark David Chapman, murderer of musician John Lennon, was carrying the book when he was arrested immediately after the murder and referred to it in his statement to police shortly thereafter. John Hinckley, Jr., who attempted to assassinate President Ronald Reagan in 1981, was also reported to have been obsessed with the book. Charles Manson is said to own several copies of the book as well.
This is totally irrelevant, even in a section regarding controversy, because it is at best a correlational relationship: that is, random coincidence that these particular individuals should have this particular book. Did they have the book because they were nuts, or did they become insane because of the book? There are quite literally hundreds of thousands of violent events occurring daily, and unless there were study examining and finding a causal relationship between the book and such events there is no justification for including this random (and unproven) trivia in this section.