Historians, backed by new high tech forensics, claim LEE HARVEY OSWALD acted alone in the assassination of President JOHN F. KENNEDY!

As the 48th anniversary of the assassination looms, a team of historians and retired Secret Service officers say they have used new technology on old evidence to prove the Warren Commission judgment that killer Lee Harvey Oswald acted alone. 

Max Holland led the computer forensics team that applied digital technology to home movies taken on Nov. 22, 1963 —  including the famous Zapruder film! 

Holland told Fox News this is the first time these amateur films, some of which have not been seen in years, have been edited together, digitally enhanced and presented in a coherent manner. 

"I'd say a main thrust of it is to break the stranglehold that the Zapruder film has on our perception of what happened. In a sense, we've all been 'Zaprudered,'" he said.

"The film was so graphic, disturbing, mesmerizing, that it became more of our perspective on the assassination than even the perspective of the assassin, which should never have happened." 

Another startling is that the new digital upgrades to amateur footage shot that day by Robert Hughes of a shadowy figure moving about inside the sixth floor of the Texas School Book Depository building — a figure long believed to be Oswald. 

"And our conclusion is that he fired three shots in about 11 seconds, which is almost double, you know, the six seconds in Dallas meme that most people know when they think about the assassination: six seconds, three shots in six seconds. We say three shots in 11 seconds, which is a much easier — for I'd say, someone of Oswald's skill — effortless task," Holland said. 

The shocking footage will be presented on the The NatGeo channel Sunday night in the documentary "JFK: The Lost Bullet."