Because Jem and Scout were the reason the mob left Tom Robbinson alone.
The Children finds Atticus in front of the maycomb jail.
Tom is in the Maycomb County Jail during the time that Atticus faces the mob downtown.
He was sitting outside of the county jail to prevent a lynch mob from attacking Tom Robinson.
In chapter 15, the children find Atticus outside the Maycomb jail. He is sitting in front of the jailhouse door reading a book, keeping watch over Tom Robinson to protect him from a possible lynch mob.
Calpurnia runs to the Radley's house and knocks on the front door shouting to them about the mad dog. This prompts Scout to point out to Jem that Calpurnia is supposed to go around to the back.
Atticus knows that he will lose, but he has to defend the man or he can't live with himself. The case is the biggest thing to hit Maycomb County in years and it turns the whole town against Atticus, or so it seems. Scout and Jem are forced to bear the slurs against their father and watch with shock and disillusionment as their fellow townspeople convict an obviously innocent man because of his race.
Atticus is worried that Tom is going to be lynched. He sits in front of the jail and a group of men shows up intending to do just that. Scout intervenes and inadvertently causes the men to disband before doing any violence.
Atticus starts to get angry with the children after the fire because he thought that they had gone back inside the house after he said to stay in front of the Radley's house. But he did not realize that even Scout, the one with the blanket on her, didn't know she had a blanket wrapped around her until Atticus had pointed it out.
Mrs. Dubose insults Atticus in front of Jem on pages 135-136 in the book "To Kill a Mockingbird" by Harper Lee.
It is where the main characters Atticus Finch, Jean Louise Finch (scout), and Jeremy Finch(Jem) live. The book shares different tales about times when the family and/or their maid Calpurnia have guests over or have different family adventures
Bob after the trial threatens Atticus that he will shoot him. Bob Ewell feels a lot of anger towards Atticus because Atticus humiliated Bob Ewell in his first time in court. Although Bob Ewell did win the case he lost a lot of his little pride he had.
Atticus worried that White men would try to take justice into their own hands. He sat there to protect the prisoner, even if it meant Atticus could be in danger. White men did come, demanding that Atticus step aside.