"When the plank was thrown out my attention was called to a man on the barge; he had a gun in his hand; there was a boy on the shore; he was tantalizing the man; the latter raised his gun to shoot the boy; I said to him: 'For God's sake don't shoot that boy, for he is only a boy.' I asked him if he was a deputy sheriff, he said no; I asked him if he was a guardsman, he said no; I then said 'you are a Pinkerton'; he replied that he was, and, holding up his gun, said his party was going to enter the mill in fifteen minutes; the boy on shore continued to call the man on the barge; the latter raised his gun and aimed at the boy, but someone pushed his gun down; when he raised it again he had it drawn on me; about that time a boy came running down to where we were, slipped and fell across the gang plank; a minute later there was a shot from the barge, and I heard afterward that the boy on the plank was shot in the side; the first shot fired after the landing was fired by either the second or third man on the plank; I do not know who he was; I went there to try and preserve order; I never saw Critchlow to know him until I saw him in court to-day." Charles Mansfield, of Homestead, effectually offset the evidence of Charles Reese. He swore that he had been in the mill yard and conversed with Reese. Asked as to the nature of the conversation, he said: "I was in a cupola with Mr. Reese. I saw a man named Critchlow go into the pump-house. I said to Reese, 'There goes Critchlow into the place where Morris was killed. He will be killed sure. You had better get a good sketch of him.'" MR. BRENNEN--"Was the man you pointed out to Reese the defendant?" "No, sir." "Who was the man?" "I do not wish to state." "Was his name Critchlow?" "It was." Numerous witnesses were then introduced to prove an alibi for the defendant. Samuel Rothrauff, J. Miller Colgan and J. J. Baird testified that they saw Critchlow in Braddock before 10 A. M. on July 6. Mrs. Bridget Coyle said that she saw him at 3 P. M. a mile distant from the mill on his way home. "There's no lie about it," exclaimed Mrs. Coyle, in answer to Attorney Patterson's questions, "but you're trying to make me tell a lie, and I wouldn't do it for all the money Carnegie has." Three witnesses corroborated Mrs. Coyle's statement and a half-dozen others accounted for Critchlow's movements in the evening. The taking of all this testimony occupied the court throughout a second night session. On Tuesday, the fourth day of the trial, the defendant testified in his own behalf, denying that he had been on the Carnegie Company's grounds at any time on the day of the battle. A light suit of clothes which he claimed to have worn on that day was exhibited as an offset to the evidence of witnesses for the prosecution who coincided in the statement that the Critchlow whom they had seen wore dark clothing.