The murder of August Gallinger, alias “Cheap John,” created a sensation in Denver in the latter part of the year 1866, which for a long while engaged the public attention. Mr. Gallinger kept a small store on the corner of Twelfth and Blake streets, and lived alone over the store in a small room. He had been a member of the Third Colorado regiment, enlisted for a hundred days, and had taken part in the Sand Creek fight. He was quite popular, and although a street peddler, he did a thriving business. He lived in plain style, and was supposed by some to be a miser. This impression it was which led to his murder.

The assault occurred on the night of December 15, 1866. Gen. Cook had been elected city marshal of Denver for the first time a few months previous. On the night of the occurrence he was passing across the Blake street bridge from Denver to West Denver, accompanied by another officer. They were walking leisurely along, when they heard something fall, creating a loud noise. Cook immediately formed the conclusion that something wrong had happened, and he and his companion started in the direction of the point from which the noise had come, and it appeared to be in John’s house. There was no one below, hence the officers rushed up stairs. It was about 9 o’clock in the evening, and as there were no artificial lights in the house, they found the place quite dark. As they went up the front steps they thought they heard some one descending the rear steps, but as they at that time did not know what had happened, they passed on into John’s room, and did not pursue the party who was leaving the house.

Reaching Mr. Gallinger’s room, their ears were greeted by moans from a man sitting on a lounge. Gen. Cook went up to where the man—who proved to be Gallinger—sat and assisted him to his feet, demanding to know what had occurred and how it had all come about. He found Gallinger covered with blood, and when the officer pulled him up the poor fellow clutched the lappel of Cook’s coat with his bloody hands. The blood was flowing from a deep wound four inches long in the head. When questioned, John replied in German, and was evidently demented. But it did not require any speech to explain that murder had been attempted. The wound was of a nature that precluded the possibility of suicide; and, besides, the instrument with which it had been inflicted was nowhere to be seen. It was evident from the appearance of the wound that it had been made with a hatchet, the murderer coming upon the victim while sitting, and striking with the edge of the tool. Dr. F. J. Bancroft was summoned. Upon examination he found that the skull had been seriously fractured, and pronounced the wound necessarily fatal. It may as well be stated here, as elsewhere, that the doctor’s prediction was verified, and that the old man died a week afterwards. He was never conscious after the night of the assault, and hence could throw no light whatever upon the affair.

Leaving the wounded man in care of others, Gen. Cook immediately began a search for the murderer. He found the tracks of a man leading out from the rear of the building, and made an exact measurement of them. He also found a woman who stated that she had seen a man go out of the building at the rear at about the time of the attack, but she had not been able to get a good look at him on account of the darkness, and thought she would be unable to recognize him.

Here was a dilemma. A crime had been committed only a few minutes before, but the criminal seemed to have escaped as effectually as if he had had a month’s start of the officers. But Cook is not the man to lose time in hesitation. He spent the night in searching for some clue which would lead to the detection of the villain, whoever he might be.

He learned enough during the night to decide him in a determination to raid a house which stood near by. This house was occupied by several persons, all of them of loose character. Among others who occupied it was a worthless individual named George Corman, who was the “solid man” of another inmate of the dwelling, a low prostitute called Mrs. Foster. The fellow did not work for a living, but depended upon the earnings of this woman for support. He was known to be none to good to steal, and it was believed that he would commit murder if there was hope of reward. Cook knew enough about this man to lead him to believe that the chances were good for his being the murderer of Cheap John. He decided to investigate, at any rate. Accordingly, in company with H. B. Haskell, then a special officer in Denver, he repaired to the Corman residence early in the morning succeeding the murderous assault. He found the front of the building occupied by Corman and his woman, while in the rear premises resided a Mrs. Mary Kerwin with her family.

The officers decided to investigate while the inmates of the house were still asleep. They entered the yard by a back entrance, and as they came up to the door found a hatchet lying upon the ground thoroughly besmeared with blood. Here was certainly a pointer—the first important one found—and it bid fair to lead to speedy results. The officers felt that they had made a big discovery, and without further ado walked into the house, where they met Mrs. Kerwin, of whom they demanded to know the name of the owner of the hatchet. Her reply was that it was the property of Corman.

Corman and the Foster woman were next approached. They did not deny the ownership of the hatchet.

“Where did this blood come from?” demanded Cook.

The woman became the spokesman. “I killed a chicken last night,” she said, “and cut its head off with the hatchet.”