A John F. Kennedy book written by Phillip Shenon is likely to stir up more conspiracy theories surrounding his death.
Shenon, a former New York Times reporter, says the book reveals that "powerful" people influenced the Warren Commission's investigation and conclusion that Lee Harvey Oswald acted alone when he killed JFK.
The book is to be released on October 22 and is expected to offer a detailed study of who was involved in the investigation and why they concluded the way they did.
"Drawn from years of research and interviews with 'primary and insider sources,' the book looks at the work of the Warren Commission which sought to determine whether killer Lee Harvey Oswald acted alone, and is said to answer 'many of the questions that have haunted a nation for 50 years, in spite of the powerful individuals who did their utmost to prevent the discovery of what really happened," the book's summary says.
Books about the former president are almost as popular as books about Abraham Lincoln, the latest book being about a woman who had an affair with him.
Because the case has many holes and unanswered questions, the public continues to be fascinated with it, though it happened in November 22, 1963.
Oswald died after murdering the president and so was not interrogated. Some believe the evidence was not properly analyzed, either, leaving many questions unanswered.