They are a Mr Gehagan, a young Irish barrister, and a friend of his named Kerrel.[18] These young men occupy chambers on opposite sides of the same landing, the third floor, over the Alienation Office in Tanfield Court.
Mr Gehagan was one of Sarah Malcolm's employers. That Sunday morning at nine she had appeared in his rooms to do them up and to light the fire. While Gehagan was talking to Sarah he was joined by his friend Kerrel, who offered to stand him some tea. Sarah was given a shilling and sent out to buy tea. She returned and made the brew, then remained about the chambers until the horn blew, as was then the Temple custom, for commons. The two young men departed. After commons they walked for a while in the Temple Gardens, then returned to Tanfield Court.
By this time the crowd attracted by the murder was blocking up the court, and Gehagan asked what was the matter. He was told of the murder, and he remarked to Kerrel that the old lady had been their charwoman's acquaintance.
The two friends then made their way to a coffee-house in Covent Garden. There was some talk there of the murder, and the theory was advanced by some one that it could have been done only by some laundress who knew the chambers and how to get in and out of them. From Covent Garden, towards night, Gehagan and Kerrel went to a tavern in Essex Street, and there they stayed carousing until one o'clock in the morning, when they left for the Temple. They were not a little astonished on reaching their common landing to find Kerrel's door open, a fire burning in the grate of his room, and a candle on the table. By the fire, with a dark riding-hood about her head, was Sarah Malcolm. To Kerrel's natural question of what she was doing there at such an unearthly hour she muttered something about having things to collect. Kerrel then, reminding her that Mrs Duncomb had been her acquaintance, asked her if anyone had been "taken up" for the murder.
"That Mr Knight," Sarah replied, "who has chambers under her, has been absent two or three days. He is suspected."
"Well," said Kerrel, remembering the theory put forward in the coffee-house, and made suspicious by her presence at that strange hour, "nobody that was acquainted with Mrs Duncomb is wanted here until the murderer is discovered. Look out your things, therefore, and begone!"
Kerrel's suspicion thickened, and he asked his friend to run downstairs and call up the watch. Gehagan ran down, but found difficulty in opening the door below, and had to return. Kerrel himself went down then, and came back with two watchmen. They found Sarah in the bedroom at a chest of drawers, in which she was turning over some linen that she claimed to be hers. The now completely suspicious Kerrel went to his closet, and noticed that two or three waistcoats were missing from a portmanteau. He asked Sarah where they were; upon which Sarah, with an eye to the watchmen and to Gehagan, begged to be allowed to speak with him alone.
Kerrel refused, saying he could have no business with her that was secret.
Sarah then confessed that she had pawned the missing waistcoats for two guineas, and begged him not to be angry. Kerrel asked her why she had not asked him for money. He could readily forgive her for pawning the waistcoats, but, having heard her talk of Mrs Lydia Duncomb, he was afraid she was concerned with the murder. A pair of earrings were found in the drawers, and these Sarah claimed, putting them in her corsage. An odd-looking bundle in the closet then attracted Kerrel's attention, and he kicked it, and asked Sarah what it was. She said it was merely dirty linen wrapped up in an old gown. She did not wish it exposed. Kerrel made further search, and found that other things were missing. He told the watch to take the woman and hold her strictly.
Sarah was led away. Kerrel, now thoroughly roused, continued his search, and he found underneath his bed another bundle. He also came upon some bloodstained linen in another place, and in a close-stool a silver tankard, upon the handle of which was a lot of dried blood.