“Ten or fifteen minutes, probably.”
“Why did you come up, go down and return the second time?”
“What do you mean?”
“Well, you say you rode down in the elevator a little before five and came back ten or fifteen minutes later. Why did you go down almost directly afterward and return the second time?”
“I did not.”
“But the janitor saw you going down the stairs about a quarter past five.”
“I beg the janitor’s pardon, but he saw nothing of the kind.”
“You deny, then, that you walked downstairs about that time?”
“Most emphatically. I have not walked downstairs in this building to-day.”
“When you were coming up did you have occasion to retrace your steps for a short distance?”