JFK was not shot from grassy knoll site: Study

The long-held conspiracy theory that former US President John F Kennedy was shot by a second gunman from the grassy knoll site is wrong, according to a new analysis of video footage of the shooting.

The results, published in the journal Heliyon, support the official autopsy findings that Kennedy suffered a gunshot wound caused by the same type of rifle as that owned by Lee Harvey Oswald, fired from the vicinity of the Texas School Book Depository building located behind the motorcade. Kennedy was assassinated on November 22, 1963, while riding in a presidential motorcade at Dealey Plaza, in Dallas, Texas. Oswald was arrested shortly after the shooting. A now widespread conspiracy theory posits that Kennedy was actually shot from a different location - the grassy knoll.

"The classified JFK files were recently released, and the fate of a few remaining files will soon be decided," said Nicholas Nalli, a senior research scientist at I M Systems Group, Inc. (IMSG) in the US.

"Given the current trendiness of news that are not based on facts, the study shows that thorough scientific investigation can make a difference in supporting one theory over another, and I therefore believe that the topic is as relevant on Thursday as it was nearly 55 years ago," he said. There were several video recordings of the incident, and one in particular shows the shooting in detail.