...how do you tell a steel-jacketed bullet from a copper-jacketed one? Yes, it's kind of a trick question.
Yeah..why not ask the cop that made the report?
Walker was involved in J.F.K's death and this staged shooting out at his house was designed to make him look like a victim in it all
Walker did hate Kennedy. That shooting was perhaps unrelated to a JFK assassination plot unless somehow it was necessary for any other patsy [as well as Oswald] to be implicated...then perhaps that guy would have been charged with the Walker shooting.
There was probably a list of communists from all over Dallas to choose from...just have them in the right place.