Bret Hart is a Canadian wrester and his wrestling finisher is the Sharpshooter.
That joint look like it hurt like fuck, bruh.
Dealey Plaza, or the infamous “Grassy Knoll” is where Kennedy was assassinated.
The way Kennedy was assassinated, according to the Warren Commission, is called the single bullet theory, and it explains what happened and how the bullets pierced Kennedy. A sharpshooter would have the eye and accuracy to do that, playing on the Sharpshooter Bret Hart reference.