THE COILS TIGHTENING. Chicago, June 20. - The grand jury yesterday heard the testimony of a large number of witnesses that were called during the coroner's investigaron. Most oí the evldence bore upon Cronin's íear that his Ufe would be taken as t :e result of the machinations of Alexander Salltvan. Chicago, June 21.- Detective Collins, wfto was sent from this clty to Winnipeg to ldentify the man there under arrest as one of the murderers of Dr. Cronin, identified the prisoner yesterday as Martin Burke, and immediateiy swore out a complaint against Burke under the extradttion act. It íb said that O'Sflllivan, the ioe-man, Ís wjlling to make a confession. He may not be able to name the lnBtigators of the awful plot which brought him into trouble, but he can tell of hia relations with Coughlin and of his con. nectlon with Camp 20 of the Clan-na-GaeL He can tell, also, when and why the Washington Literary Society was organized, and of the reasons he had for desiring to make the contract with Dr. Cronin. He can têll who the people were who rènted the cottage, and also who the man was who drove the horse which carried Dr. Cronin away. He can tell of Dan Coujfhlin's connection with the conspiracy from beginning to end, and, it is believed, will be afte to show under what authority Coughlin was acting. With O'Sullivan's evidence the bottom will drop out of the whole conspiracy. Winnipeg, Man., Juna 22.- The link connecting Martin Burke with the Cronin raurder was completely established last evening when Martinson, the expressman, who hauled the furniture to Carlson's cottage, and who arrived here during the day, identifiod Burke among fifty-two prisoners and citizens who stood in semiclrcle in the jail-yard. The Identification was complete. Chicago, June 22. -The report that P. O'Sullivan has weakened and is about to turn State's evidence ia wholly without foundation. O'Sullivan himself was seen and asked about the report, and indignantly denounced it as false. He has maintained from the first that he had no complicity in and has no knowledge of the murder, and that he has nothing to furnlsh the State m the way of clews or direct evidence. Geerde E. Brooks, a news agent, testlfled before the grand jury that while riding on the night of May 4 with hls sweetheart he gaw three men loading the trunk into the wagon at the Carlson cottage, and that about hsjf an hour latei he saw the same men dumping the contents of the trunk Into the catch-basin in which the body of Dr. Cronin was found. He also saya that he saw the men distinctly, and that he will be able to identify them, as will also the girl. He said he had not told his story before for fear of his life, but protection had been promised him. Chicago, June 25. - The bureau of prosej cution in the Cronin case, embraclng the State's Attorney, the superintendent of police and the detectives in the employ of the Cronin committee, is now directing ita entire efferts to the discovery of new evidence showing that the conspiracy to murder the doctor was coneocted in Camp 20' of the United Brotherhood and was executed by its members, who are popularly known as Clan-na-Gaels. The successive discoveries that Dan Goughlin, P. O'Sullivan, Maltin Burke and Patrick Cooney were all members of Camp 20 directed attention to this camp wlth renewed force, and within the last three days new Information iu part withheld from the public has convinced the authorities that they are following a course certain to end in the complete exposure of the censpiracy. This theory niakes John F. Beggs, as senior guardián of the camp. one of the most guilty members of the group. Beggs said to a reporter Monday evening in a reply to a question about the alleged trial of Dr. Cronin before the "inner circle" of Camp 3U: "It'8 bosh. There is no such thing as an 'inner circlo.' There used to be in the Fenlan Brotherhood, but never in the Clan-na-Gael. Anybody can preíer a charge against any memher of the order and the member will be tried beïore a committee of seven, three members to be appointed by the camp and the other fourby the district offlcer. The man charged is always notilïed and is given the benefit of counsel. To couduct a trial in any other way would be impossibte. There never was any trial of Cronin in Camp 20. It is true that Cooney, Burke, CouRhlin and Sullivan were members of the camp, and that three of them are behind the bars, while the other ran away from town. Two-thirds of the members of the camp were warm friends of Dr. Cronin, and I was always his friend."