When Norman returned from his office -- out of his armor and in a nice clean suit, network post made -- he strolled by the broken window in order to head back to the lab, cleaning up the scene in there. He put his armor away carefully, placing everything exactly as it had been. Security footage had, luckily, been disabled in this area beforehand.

After he had taken care of the 'scene of the crime', he wandered by the window once more to clean up any glass that had fallen to the inside. His eyes flicked towards outside the window again, and then he frowned, darkly. The crater where Selina had landed remained on the sidewalk like the hole in the window, empty like the window pane.

Now, where the hell had she gone?