Mr. Ewell is not shaken from his story, but Atticus carefully plants the seed that Mr. Ewell himself could’ve beaten Mayella. Mayella takes the stand next. Even though Atticus believes that she’s lying, he treats her with courtesy and respect; Mayella thinks that he’s making fun of her. Her testimony soon proves that Mayella is unused to gentility and common courtesy. Atticus asks Tom to stand up so that Mayella may identify him; as he does, Scout notices that Tom’s left arm is withered and useless — he could not have committed the crime in the way it was described. The state rests its case.
Consider
on 
https://www.cliffsnotes.com/literature/t/to-kill-a-mockingbird/summary-and-analysis/part-2-chapters-1720
Hey, Jayd, I’m asking you to think about what you read and write about it. I’m not interested in seeing that you can copy and paste from Cliff’s Notes. Copying is cheating, buddy.