To kill a mocking bird?

Atticus Finch is viewed as an outsider because the community in To Kill a Mockingbird is very racial; Atticus supports Tom when almost every other member of the town believes that he (Atticus) should not be defending a black man. Boo Radley is misunderstood, and since the townspeople don't know much about him, they decide that he is "weird", or different. Tom Robinson is the black man that Atticus defends in court. The white people regard him as an outsider because of his race; and though he is kind, he also has a deformed arm, which makes him different from the other colored people as well.