Who is Atticus defending? What are townspeople saying about the case? what is Atticus' response to the gossip?

Atticus is defending a man named Tom Robinson. He is accused of raping a white woman. The townspeople give Atticus a hard time for defending a back man and don't believe he can win. Atticus is called names and threatened, his children experience much the same. Atticus shrugs off the gossip and does his job.