Hoping someone can clarify this for me. I've never quite understood how Reacher knew where to shoot Emerson in the quarry office. Emerson has two guns, one pointed at the door and the other directly at Helen, and he's only exposing mere square inches of himself that Reacher seems to catch in some sort of reflection.…

Hoping someone can clarify this for me. I've never quite understood how Reacher knew where to shoot Emerson in the quarry office. Emerson has two guns, one pointed at the door and the other directly at Helen, and he's only exposing mere square inches of himself that Reacher seems to catch in some sort of reflection.…