Q. “Have you any idea from your observations, Mr. De Medici, by whom the dead man was murdered?”
A. “Not yet.”
Q. “You were present with Lieutenant Norton in the library when the first examination was made?”
A. “I was.”
Q. “What time did you arrive at the Ballau apartment?”
A. “I don’t recall the exact time.”
Q. “Did Miss Ballau have her hat on when she came out of the elevator as you entered the lobby?”
A. “No.”
Q. “How was she dressed?”
Then they knew about the costume!