Hereunder will be found a plan of the room in which the murder was committed, and also the alley leading to the street. We wish our readers to take particular note of this, as we wish to give our theory as to the way in which the murderer went about his diabolical work.

A. Door leading into shop--found bolted.

B. Bed with clothes in disorder.

C. Safe found open, with all valuables abstracted.

D. Window found open by which assassin probably entered.

E. Door leading to alley--found locked.

F. Alley leading to street, by which entrance was gained to back of house.

G. Place where body of murdered man was discovered.

In the first place, there is no doubt that the motive of the crime was robbery, as is proved by the open safe rifled of its contents. The murderer evidently knew that Lazarus slept in the back room and had the keys of the safe--as we have since ascertained--under his pillow. He must also have known the position of the safe and bed, for had he groped about for them, he would have awakened the old man, who would have instantly have given the alarm.