How does this film show how some individuals and groups can be both centered and also marginalized socially and culturally? In particular, how do the law enforcement and media figures in the film demonstrate how wielding significant social power may or may not mean that someone is centered in other contexts? Is there a character or characters who are particularly shown to be caught in this tension?
On the other side of the story, how does the film show how marginalization (of people, of places) creates space for someone like "the Zodiac" to practice their violent compulsions and exercise power over others from those margins?