1 why did ponyboy realize when he looked at bobs picture, 2 why did randy visit ponyboy, 3 why did the judges questions suprise ponyboy

Looking through Soda's old yearbooks to pass the time, he stumbles across a picture of Robert Sheldon. He recognizes the boy, but he needs a moment to realize that this is the Bob whom Johnny killed.Pony realizes Bob was just a person like them.

Please submit each of your questions one at a time. Thanks!