Category "one-hour-photo"

What purpose do Sy's pictures of the little girl serve in "One hour photo"?

In the movie, "One hour photo", Sy takes many pictures of a little girl and gets them developed at his own shop. Like the police officer observed, Sy knew they'

Why does Yoshi Araki say "Wow" in this conversation?

In One Hour Photo there is a conversation between Yoshi Araki and Seymour(Sy) that goes like this: Seymour: I won't be coming back, Yoshi. Bill let me go.