right and left. But for all his assumption of confidence, his
nervousness was very apparent.

"You say," said he to Osborne, "that the scrubwoman unlocked the
street door. Very good. That shows that _it_ was fast at all events.
Now what other means are there of entering the building?"

"None, except by the fire-escapes and windows. But the windows on this
floor are all secured except for those at the front."

"Except for those at the front." The young coroner paused in his hand
rubbing. "Would it not have been possible for the person or persons
who did this murder to enter by one of those?"

"It would have been possible," returned the big headquarters man, "but
no sane person would do it. They'd have to swarm up the face of the
building in full view of anyone that might be passing at the time."

"Exactly," said Stillman, stiffening under what he was half inclined
to consider a rebuff. "Well, that eliminates _that_ possibility. Now
to the next one. Who occupied the building besides the murdered man?"

"A man named Berg keeps a delicatessen store on the first floor. His
place in no way communicates with the rest of the building. The third
and fourth floors are used for storage purposes by a furrier. Except
in the spring and fall, so Mrs. Dwyer tells me, he seldom visits the
building."

"Is there any way of getting in from the top of the house--the roof?"
asked the coroner.