Grassy Knoll Shooter Theory

Record	OBS-0083
Category	History/Assassinations
Status	DEBUNKED
Summary	Proponents claim that an unidentified sniper fired at President John F. Kennedy from the grassy knoll in Dealey Plaza, Dallas, on November 22, 1963. This theory contradicts the Warren Commission's conclusion that Lee Harvey Oswald acted alone from the Texas School Book Depository. Analysis of amateur film footage and subsequent investigations have found no evidence of a shooter on the knoll.
Origin	The theory emerged shortly after the assassination of President Kennedy in 1963, fueled by eyewitness accounts and early film analysis.
Claimed	An unidentified sniper on the grassy knoll fired at President Kennedy. The Orville Nix film shows a rifleman on the knoll. The Warren Commission's conclusion of a lone gunman is incorrect.
Evidence / consensus	The Warren Commission and subsequent investigations, including a 1967 analysis by Itek Corporation, found no evidence of a shooter on the grassy knoll. The purported figure in the Nix film was identified as a tree shadow, and the raised object was likely a vehicle in a parking lot. The House Select Committee on Assassinations in 1979 concluded that Kennedy was 'probably assassinated as a result of a conspiracy,' but did not identify a second gunman, and acoustic evidence suggesting a fourth shot has been disputed.

> OBSERVER NOTE:
The grassy knoll theory persists despite multiple technical analyses failing to support it. The 1979 HSCA finding of 'probable conspiracy' is often cited by proponents, but it remains controversial and does not confirm a knoll shooter.

Sources

Sources are external and provided for verification. Listing does not imply the Observer endorses their claims.