Salinger sues, and is granted an injunction to stay the publication of a parody (says the Swedish author) of Holden Caulfield of "Catcher in the Rye" from a teenager to a 76 year old.
The book has been published in Britain, where apparently the talk by its author is that the suit denies Americans the opportunity to catch up on Caulfield's life.
I don't recall many incidence of copyright dispute of this nature, but it is one that often occurs in visual art translations, collages in particular and iconic images frequently. Mickey Mouse was among the first to meet his doppelganger in copyright court and Disney won roundly.
Perhaps if Mr. Fredrik Colting, pen name John David California, had asked, Mr. Salinger may have granted him the right for this purported sequel.