The National Archive is set to release reports on Thursday about the 1963 death of President John F. Kennedy, something that inspired countless conspiracy theories more than anything else in American political history.

"I'm stunned at the sheer number of reports," said Ken Hughes, a specialist with the University of Virginia's Miller Center of Public Policy.

Releasing the controversial documents

Hughes said a lot of the reports are probably going to concentrate on the killer Lee Harvey Oswald, and additionally, unsuccessful attempts at overthrowing foreign regimes and murdering their rulers.

"Most of them are about the secret missions that happened in the Kennedy-era," he said.

Details on foreign assassinations

The CIA's intention to overthrow and perhaps kill Cuban Dictator Fidel Castro is probably going to be among those reports.

We are also going to know about the role Uncle Sam played in the murder of Ngo Dinh Diem, South Vietnamese ruler, who was murdered three weeks before JFK, Hughes said. Many conspiracy theorists have said that the JFK assassination was a retaliation to the Vietnam operation.

"It's exceptionally mysterious what his position was concerning the death of Diem," Hughes told the Daily News on Wednesday. "That is something that tomorrow's reports can clear up."

More insight into Oswald

The reports "are not going to give us something besides Lee Harvey Oswald as the professional killer," he added.

Political experts say that the critical revelation that could be featured in these reports will be about the trip Oswald made to Mexico City.

Oswald assassinated the president a few weeks after the trip, which places historical significance on the trip that the world knows nothing about so far.

At the time Mexico City was something of a junction for spies in the Western Hemisphere, and Oswald went by the international safe havens for the Soviet Union and Cuba during his trip through the Mexican capital.

The two consulates were routinely observed by the CIA, and the release of these reports could shed some light on how informed the intelligence agencies were about the assassination.

"The CIA may have gotten the hang of something about Oswald's actions at the time and, everything considered, we need to see if anything Oswald did alert them," Hughes said. "It's quite exceptionally charming to discover what the CIA knew and if so, why they didn't act."

There was a release of related documents this late spring, which showed that the CIA had suspicions about the Warren Commission. There were allegations that the commission did not consider Oswald's trip to have any significance and that could have been a huge oversight.