Atticus missed this one

Rating: 10/10 (8 March 2015)

While on the stand Bob Ewell stated that he was coming from the woods with kindling when he heard his daughter screaming, he said he ran to the window and saw Tom Robinson standing over Violet(or beating her I don't remember), Then he ran around to the front of the house just as Robinson was running out,just in front of Bob Ewell.
When Violet Ewell was on the stand she said her father stood over her screaming "who did it!,who did it!"
A bit of contradiction that may have turned the case the other way.
I do wonder though if the writers, directors, actors, or maybe mrs Lee all missed it