The assassination of John F. Kennedy, the 35th President of the United States, was an event organized by the Templars, who wanted to remove Kennedy with the intention of taking control of the United States.
John F. Kennedy was the President during the 1960s, a time where America was determined to send a man to the Moon, safely landing and then returning to Earth; this was very important for the Templars as they knew of a Piece of Eden that was located on the Moon. Unfortunately for them, Kennedy did not share their motives and so this proved 'inconvenient' to them.
Also, Kennedy's suspicions regarding the Central Intelligence Agency (CIA) proved to be a factor contributing to the Templars' need to get rid of him. He reportedly cut their funding and wanted to find out what they were really doing, therefore worrying the Templars.
The assassination was a plot created by the Templars to remove Kennedy, who was planning to drastically reform civil rights in the US, from power. They also wanted to obtain his Piece of Eden and place Vice President Lyndon B. Johnson in power.
Lee Harvey Oswald, the shooter, was a Templar-trained sleeper, and Abraham Zapruder, who would film the event on camera, would perform the assassination should Oswald be unable to do so. William Greer, a U.S. Secret Service agent, drove Kennedy's vehicle and would slow the vehicle down in the event that Kennedy was not killed with one shot. The Templars would then use their own Apple of Eden to create a diversion in the shape of a phantom appearing on a nearby hill behind Zapruder, giving Greer an opportunity to steal the president's Apple.
The Templars were successful in their plan. Following Kennedy's death, Johnson was sworn in as President only hours later. Greer was able to secure the Apple, and both he and Zapruder evaded suspicion. Oswald, on the other hand, made the mistake of killing a Dallas police officer and was arrested. He was accused of the President's murder, but was shot and killed before he could be questioned by federal agents.
Kennedy's death allowed for the Templars to launch Apollo 11 in 1969, using the project as a front to recover another Apple from the surface of the Moon.