The reply should be...
...there is film and photographic evidence as well as supporting interviews and testimonies from people from 55-years ago that indicates a shot or shots were probably fired from behind the wooden fence on the Grassy Knoll. It was brought up the day of the assassination. It was also confirmed [rather half-heartedly] by the House Committee in 1978.
By now you should know that there are people here who close their eyes ..put their hands over their ears ...stick their head in the sand and sense everything else with their backside.
No, the reply should be the shots came from the pergola. Facts are facts. It is undeniable fact. You have the Mooreman photo that shows a person behind Mr. Zapruder, you have the Nix film with shots being fired from the exact place where the person is seen behind Mr. Zapruder. You have interviews and testimonies from Mr. Zapruder and Mr. Newman stating that it came from the pergola.
Facts are facts, they are undeniable. You seem to have a problem with facts and the truth. Why?