Oh, please. You're pretending there weren't seventeen shots from the grassy knoll.
Naw, there were two shots, that’s all. The first shot that this Barney Fife like character shot went into the water that the old man and his grandson were standing by. At that point the old man says he started yelling that there were people down there and he grabbed his grandson and held him close. Unfortunately that did no good because the second shot hit not only its target, the snake, but also the boy.