By stating that “The State has not produced one iota of medical evidence that the crime Tom Robinson is charged with ever took place, (Lee, 207)” Atticus is using factual evidence that if Mayella had not even gone to see the doctor after she was supposedly “raped,” then there is really no proof that Mayella was sexually assaulted in any way or by Tom Robinson himself. Also, when he states, “Now there is circumstantial evidence to indicate that Mayella Ewell was beaten savagely by someone who led, almost exclusively, with his left. And Tom Robinson now sits before you having taken “The Oath” with the only good hand he possesses- his right,” Atticus is conveying that there's no possible way that Tom assaulted Mayella with his left hand, the hand Mayella claims beat her, if his left his is crippled and his only good hand is his right. By using such obvious and strong evidence that proves that Tom Robinson did not commit the crime he was accused of, Atticus is not only attempting to convince the jury that Tom Robinson didn’t commit the crime he is being accused of, but he is also trying to win so he can prove that not all black people commit the crimes they get accused of with such little and weak evidence. Atticus uses ethos to prove Tom is not guilty by acknowledging the credibility of the court. “That institution, gentlemen, is a court. It can be the Supreme Court ofthe United States or the humblest J.P. court in the land, or this honorable