Sadly for Tom Robinson, the jury--as Atticus had already predicted--seems to have made up its mind before the trial began. The fact that the jury was all-white and that Tom--a Negro--was accused of raping a white woman, it did not bode well for Atticus' defense. However, he certainly made it clear to the readers--if not the jury--that Tom could not have assaulted Mayella. Atticus proved that the marks on Mayella's face could only have been done by a left-handed man; Tom's left arm was crippled. Bruises were found all the way around Mayella's neck; again, Tom could not have caused them with his bad arm. Both Mayella's and Bob's testimony was contradictory, and Mayella changed her story several times. Sheriff Tate never called a doctor to examine Mayella, and no rape kit was available in the 1930s. Tom gave his testimony clearly and without contradiction, and he claims to have run away after Mayella began kissing him. Since the jury was supposed to have found Tom not guilty if reasonable doubt was sufficient, they seemed to have ignored virtually all of the testimony.