You had nothing

Scully: (She madly twist the handle) Now what?
Mulder: It's locked? (He turns the handle and opens the door)
Scully: I had you.
Mulder: No, you didn't
Scully: Oh, yeah. I had you big time.
Mulder: You had nothing. I saw you jiggle the handle.
Scully: I saw your face, Mulder. There was a definite moment of panic.
Mulder: You've never seen me panic. When I panic I make this face.
Scully: That was the face. I saw that face.
<From the movie "Fight the Future>
I think here "had" means "tricked."
So I was wondering why "nothing" is used, not "none."
Thank you in advance for your help.