But, although he held his peace until Coughlin had left, the livery-man was anything but satisfied in his own mind, and the more he thought of it the stronger he was convinced that the matter had not been properly investigated. Finally he went to Horace Elliott, chief of detectives, with his story. Elliott took him to Chief of Police Hubbard. The head of the force listened attentively, and shrewd and experienced as he was, recognized the importance of the disclosure. Dinan's description of Coughlin's friend was compared with that of the supposed messenger from O'Sullivan's ice house, and found to correspond in almost every particular. With the chief to think was to act. Instructions were sent to the Chicago avenue station that Coughlin was to remain indoors, and all that day he was so closely watched that if he had attempted to escape he could not have left the station without being placed under arrest. In the afternoon there was a conference at police headquarters, in which Mayor Cregier, Chief Hubbard, Corporation Council Hutchinson, Lawyer W. J. Hynes, Col. W. P. Rend, and others interested in the prosecution participated. Coughlin was sent for, and for two hours he was subjected to a rigid and merciless examination. His replies were evasive and unsatisfactory. Several times when hard pressed he refused to answer at all, and he frequently contradicted himself and became so confused that it was evident that he was endeavouring to conceal the truth. When he left the room the conference was resumed, and a general opinion was expressed that the detective had a guilty knowledge of the murderous plot by which Dr. Cronin had lost his life, and that he should be treated as an ordinary criminal. He was taken from the place in the same patrol wagon that had carried so many of his own prisoners, and that night he slept in "Criminals Row" of the armory station. Before the conference had ended, orders were also issued suspending Detective Michael Whalen, who was a first cousin to iceman O'Sullivan, for neglect of duty.

CHIEF OF POLICE HUBBARD.

THE SMITH STORY DISPROVED.

Coughlin's friend, Smith, put in an appearance at police headquarters of his own volition, the following day, only, however, to give a flat refutation of the story told by the detective. "Willard F." instead of "Thomas" Smith was his name. He had come to Chicago from Michigan four years before; had traveled thence pretty well all over the west and south, and eventually had returned to the city. When a boy in Houghton, half a mile from Hancock, he had lived next door to Coughlin, and after coming to Chicago the second time, he had called upon him at the station. On the last occasion he had said something about having been in New Mexico. He volunteered the statement that he was the man that Coughlin had met on Clark street when the latter was in company with Whalen, but strongly denied that he had ever asked his friend to hire a rig; that he had never used one in Chicago, or that he was identified in any way with Irish secret societies. In fact, although born in Michigan, his parents were native born Germans.

THE CASE AGAINST O'SULLIVAN.

No doubt could any longer exist but that the suspicions that had been entertained that Detective Coughlin was, to a greater or lesser degree, connected with the crime, was well founded. It was equally certain that, by the same process of reasoning, O'Sullivan was largely in the toils. Many a man and woman in foreign countries had been sent to the gallows on evidence far less circumstantial than that with which the iceman was confronted at this stage of the case. It was beyond all question, that about the middle of April, more than a month prior to the disappearance of Dr. Cronin, he had asked John A. Mahoney, a Lake View Justice of the Peace, to introduce him to the physician, giving as a reason that he wanted to make a contract with some good surgeon to take care of the men who were employed on his ice wagons, during the hot season. The Justice, either not knowing or not remembering that O'Sullivan employed but three or four men, readily consented, and the two men went to the Physician's office in the Chicago Opera House block. Here after considerable conversation, a contract was agreed upon, by which O'Sullivan undertook to pay Dr. Cronin $8.00 per month, the latter agreeing to attend the iceman's employees when injured, as well as any children that might be hurt by his wagons. In this agreement however, there was one remarkable and significant stipulation. It was to the effect that the Physician should respond to any call that might be made, by any person presenting one of O'Sullivan's cards, and, in order that there should be no mistake on this point, the ice dealer after the interview in question handed one of his cards to the Physician. The latter placed it in the frame of the mirror of his private office, and there, a silent witness, yet ready to testify in trumpet tones, it was found on the day succeeding the night that he was decoyed to his death.

It was commented upon at the time as remarkable that Dr. Cronin should not have made some inquiries when the matter of the contract was broached. So far as was known by his friends no arrangement of this kind had ever before been suggested to him in the course of his many years of practice. At this very time, moreover, he was in constant dread, or at least anticipation, of being murdered. Yet, although the financial consideration mentioned was purely nominal, he went into the matter as a speculator goes into a blind pool. Apparently it never suggested itself to him, to inquire why O'Sullivan should desire to make such a contract. He had no ice houses, his business consisting in retailing ice which he purchased at wholesale rates from various shippers. He employed but a very few men and there was no evidence that any of his wagons had created havoc among the little ones on the North Side of the city. His business was almost exclusively with private families who purchased their ice in small quantities, rarely over 100 pounds at a time. His men ran little or no risk of getting hurt, and even if they did, the iceman would in no way have been responsible. Assuming, however, that he was more than ordinary solicitous about his employees, and willing to assume the responsibility for their care in sickness, why should he have selected the Irish physician? Why should he have picked out a man whose office was nearly six miles from his barns, when fully two score of experienced surgeons were to be found all over the town of Lake View, to say nothing of those who resided at short distances along the route from the suburb to the residence of the Conklins? There were other pertinent questions. Why did O'Sullivan need an introduction to Dr. Cronin? He had met him before, in fact had participated in a meeting of a Camp of the Clan-na-Gael when the physician had assisted in the initiation of several new members. He had no favor to ask, and even offered to make the first month's payment on the contract in advance and to always pay in advance. Why then should he have induced Justice Mahoney to ride five miles in order that the justice might introduce a man already known to Dr. Cronin, who had no favor to ask and who simply desired to make a contract decidedly unfavorable to himself?

Again, why was the use of a card necessary? Was there any danger that outside parties would take advantage of a contract that they knew nothing about, and have their broken limbs or internal injuries attended to free of charge on O'Sullivan's account? What protection could a card guarantee? Would not the word of a caller have answered just as well?

Right here additional facts were woven into the web. Two days prior to the date on which the contract was made, O'Sullivan had called at the office of the Lake View Record, a weekly newspaper published in the town, and obtained some three thousand business cards which he had ordered to be printed about the middle of April. They differed slightly from the old card which he had used, but had the same general appearance. The same cut of an ice wagon was in the center, printed in red ink. The heading however, was "Sullivan Ice Company," instead of "P. O'Sullivan & Co.," the heading of the old card. This was May 2nd. Why did O'Sullivan need these cards. He must have had full a thousand of the old stock on hand. What did O'Sullivan do with these cards? Who did he give them to?