Atticus has proven that Tom is innocent, but the jury convicts him anyway. After Tom is killed, his widow, Helen, needs to find a way to support herself and her children. Rev. Sykes tries to help and guide her. Link Deas, who was Tom's employer, gives her a job, so she can support herself. She is very grateful for the chance and feels like she can provide for her family.
Bob Ewell is a nasty man, who is not happy with anything. He still sees Atticus and Helen as obstacles in his life. He starts to follow Helen on her way to and from work. His family mistreats her if they get the chance. He has enlisted them to held in his plan. He frightens Helen so much, that she finally tells Link Deas what is going on. Mr. Deas walks her home so she won't be alone and the subject to more torment. Mr. Deas finally has enough of Bob and threatens to call the police and have him arrested if he doesn't stop. This scares Bob off, so he focuses his attention to getting back at Atticus.
Bob Ewell is the kind of man that doesn't care about anything. He is mean and hateful and always has been. Helen has done nothing to hurt anybody. Her husband was innocent but sent to prison and then killed. She is trying to take care of her family, and Bob doesn't want her to be able to do that, but in the end Bob gets what is coming to him and Helen is able to take care of herself and her family.