What is circumstantial evidence what has it got to do with tom's conviction?

"Circumstantial

evidence" is indirect evidence. It relates to a series of facts

other than the particular fact to be proved. Tom was proven guilty

due to two eye-witnesses with very little credibility; however it

can still be counted as direct evidence. There is much

circumstantial evidence for Tom Robinson, such as the fact that his

left arm is useless and that, through deduction, we can conclude

that Mayella Ewell was beaten by a left-handed person.