Nelson was the janitor of the building in which he had roomed.

He asked himself what could be Moxlow's purpose in examining him.
There was just one thing North feared, and that--the bringing of Evelyn Langham's name into the case.

How this could happen he did not see, but the law dug its own channels and sometimes they went far enough afield.
While this was passing through his mind, Nelson was sworn and Moxlow began his examination.
Mr.Nelson was in charge of the building on the corner of Main Street and the Square,--he referred to the brick building on the southeast corner?
The witness answered in the affirmative, and Moxlow's next question brought out the fact that for some weeks the building had had only two tenants; John North and Andrew Gilmore.
What was the exact nature of his duties?
The witness could hardly say; he was something of a carpenter for one thing, and at the present time was making certain repairs in the vacant store-room on the ground floor.
Did he take care of the entrance and the two halls?
Yes.

Had he anything to do with the rooms of the two tenants on the first floor?
Yes.

What?
Sometimes he swept and dusted them and he was supposed to look after the fires.