Scout climbs into Atticus's lap and tells the story: how she had forgotten her shoes, how they thought it was Cecil so they shouted at him (the sheriff interrupts here to ask if Atticus heard anything: he didn't, but he had the radio on); how she heard the footsteps behind them; how she was still wearing the ham costume.
Mr. Tate says the costume explains the strange marks he found on the body, and Atticus goes to get the now squashed ham.
They look at the costume, and it's more than squashed—there's a cut where Mr. Ewell had slashed at Scout with a knife.
Atticus never thought Ewell would go after the kids, but Tate says that there are some men who are just bad.
They go back to Scout's story, and when Tate asks who the other man was, Scout gestures towards the stranger in the corner.
Scout finally looks at the man properly and sees his paleness, his thinness, his colorless eyes, and realizes—she's looking at Boo Radley.
He smiles shyly at her, and tears come to Scout's eyes as she says, "Hey, Boo" (29.50).