President-elect Donald Trump has pledged to declassify all remaining government documents related to the assassination of President John F. Kennedy if he returns to office. Conspiracy theories continue to swirl around the assassination of the 35th president of the United States, even after 60 years.

It’s important to understand why conspiracy theories persist after six decades. John F. Kennedy was fatally shot on November 22, 1963, while walking through Dealey Plaza in Dallas.

Some classified documents have been withheld that of Donald Trump first term following calls from the CIA and FBI, even though he had made a similar commitment. Among the millions of government documents, a few thousand are still out of public view. The documents have not been declassified because they could potentially harm national security. Meanwhile, the files continued to be published under the presidency Joe Biden’s administrationbut some still remain invisible.

The yet-to-be-released documents are unlikely to provide any earth-shattering revelations, AP reported, citing those who have studied the documents released so far. “Anyone waiting for irrefutable evidence that will turn this matter upside down will be deeply disappointed,” said the author of Case closed Gerald Posner. According to the biography, assassin Lee Harvey Oswald acted alone.

He added: “If you’ve been following it, as I and others have, you’re sort of focused on the pages that you think might provide additional information about the story.”

According to Posner, approximately 500 documents were completely withheld, including Oswald and Ruby’s tax returns. The National Archives indicated on its website that these records were not subject to the 2017 disclosure requirement.

The Warren Commission concluded that there was no evidence of a conspiracy and Oswald acted alone, a year after the assassination. The Commission was created by President Lyndon B. Johnson, but alternative theories continue to circulate over the decades.