morning, but you will find from his report that none of the other
tenants admit hearing the shot; that the tenant in the flat across
the hall was apparently not at home, and that the janitor says the
people who rent the flat in which the trouble occurred, have been
away all summer. The only really definite information of any kind
comes from this one tenant, Marsh."

"You'll probably find Tierney at the flat, as I sent him back after
he had turned in this report. He may have found out something more
by now than he could put in that quick report."

"Chief," said Morgan, as he thumbed over the typewritten sheets in
his hands, "you say there has been a murder committed here. With
this tenant, Marsh, and a patrolman, getting into action so soon
after the shot, a body couldn't possibly be moved out of the house--
certainly, not without leaving some trace."

"Well?"

"How do we know there was a murder?"

"We don't know--positively," returned the Chief. "But we're not
going to take any chances. Even if there wasn't an actual murder,
SOMETHING OF A CRIMINAL NATURE WAS PULLED OFF IN THAT FLAT LAST
NIGHT. What it was, we're putting up to you to find out. Go to it,
Morgan! So long!"