President Donald Trump said Saturday he intends to allow the release of classified government documents about the assassination of President John F. Kennedy "subject to the receipt of further information".
"Subject to the receipt of further information, I will be allowing, as President, the long blocked and classified JFK FILES to be opened", Trump tweeted just after 8:30.
Kennedy assassination experts have been speculating for weeks about whether Trump would disclose the documents.
Thousands of books, articles, TV shows, movies and documentaries have been produced about the assassination and surveys have shown that a majority of Americans still distrust official evidence that points to Lee Harvey Oswald as the sole killer.
The 1963 assassination of JFK has always been muddied by conspiracy theories.
Over the years, the National Archives has released most documents related to the case, but a final batch remains and only Mr Trump has the authority to decide whether some should continue to be withheld or released in redacted form.
The formal date of the release is October 26, 2017, as determined by the President John F. Kennedy Assassination Records Collection Act of 1992, which George H.W. Bush signed into law exactly 25 years ago.
The FBI and the Warren Commission officially concluded that Oswald was the lone assassin, but various groups believed that Kennedy was the victim of a conspiracy.
Even Trump has accused America of plotting his predecessor's death, telling Fox News in 2016 that he believed the father of Republican Senator Ted Cruz had consorted with Oswald right before the shooting. But Trump's longtime confidant Roger Stone told conspiracy theorist Alex Jones of Infowars this week that he personally lobbied Trump to publish all of the documents.
There are about 3,100 previously unreleased files that hold tens of thousands of pages of new material. No one knows exactly what information is contained in the files; the only guide is an index that vaguely lists the contents of the secret documents.
Posner said that the conspiracy theories about the Central Intelligence Agency and mob working together to assassinate a head of state are true - but the target was Cuban leader Fidel Castro, not Kennedy.