whitey opened the rear doors and pulled them wide so they blocked anyone 's view of the space behind the screen , sean thinking it never would have occurred to him to form protective wings around the doorway where katie marcus had died , and then reminding himself that whitey had a lot more time put in on crime scenes than he had , whitey an old warhorse going back to a time when sean was still trying to cop feels at high school dances and not pick at his acne .