Why the alleged "flash-bang" on the Grassy Knoll?

[Richard Smith]

The sound distortion in DP made it very difficult for witnesses to ascertain based on sound alone the location from which the shots originated.  That is why witness descriptions are all over the place as to the shooter's location.  Most witnesses confirm one shooter by indicating that the shots they heard originated from one location even if they disagreed as to that location. 

Some witnesses undoubtedly were influenced in their opinion of the location of the shots by not only what they heard but what they could see based on the fact that the Grassy Knoll provides the most apparent location for an assassin from the DP perspective.  It offers proximity to JFK car at the moment of the assassination and provides apparent seclusion for a shooter.  Many individuals moved in the direction of the GK after the assassination for that reason.  We know, however, that the backside of the GK behind the fence is open to half of Dallas and is the very last place any assassin would place themselves to commit this crime.  The conclusion that it is a good location for the assassin is an illusion based on the most common perspective as seen from the Elm St. 

[Tom Graves]

The sound distortion in DP made it very difficult for witnesses to ascertain based on sound alone the location from which the shots originated.  That is why witness descriptions are all over the place as to the shooter's location.  Most witnesses confirm one shooter by indicating that the shots they heard originated from one location even if they disagreed as to that location. 

Some witnesses undoubtedly were influenced in their opinion of the location of the shots by not only what they heard but what they could see based on the fact that the Grassy Knoll provides the most apparent location for an assassin from the DP perspective.  It offers proximity to JFK car at the moment of the assassination and provides apparent seclusion for a shooter.  Many individuals moved in the direction of the GK after the assassination for that reason.  We know, however, that the backside of the GK behind the fence is open to half of Dallas and is the very last place any assassin would place themselves to commit this crime.  The conclusion that it is a good location for the assassin is an illusion based on the most common perspective as seen from the Elm St.

Correct.