“The explanation was simple. The whim had suddenly seized her to go to New Orleans; and she had gone without leave-taking or warning. It was no unusual incident in her wandering life, and her speedy return was due only to the fact that she found the Southern city only a military camp under the iron rule of General Butler, and therefore an unprofitable field for her.

“The ghastly head became more of a mystery than before. The baffled Detectives could again only look at it helplessly, and send descriptions of it over the country. At last it was seen by a woman named Callahan, living in Boston, who was in search of a daughter who had gone astray. She instantly pronounced it to be that of her child, and she was corroborated by all the members of her family and several of her neighbors. The identification was no less specific than before, and the perplexed authorities, glad at last to know something certainly, gave Mrs. Callahan an order for the body. Before, however, she had completed her arrangements for its transfer to Boston, a message reached her from the daughter, who was lying sick in Bellevue Hospital, and so the head once more became a mystery. And such it has always remained. The body told that a female who had been delicately reared, who had fared sumptuously, and had been arrayed in costly fabrics, had been foully done to death, just as she was stepping into the dawn of womanhood—and that is all that is known. Her name, her station, her history, her virtues, or it may be, her frailties, all went down with her life, and were irrevocably lost. There is every probability that her case will always be classed as unfinished business.”

On Friday, July 20th, 1870, Mr. Benjamin Nathan, a wealthy Jewish resident of New York, was foully and mysteriously murdered in his own dwelling by an unknown assassin. All the circumstances of the case were so mysterious, so horribly dramatic, that the public interest was wrought up to the highest pitch.

Mr. Nathan was a millionaire, a banker and citizen of irreproachable character, well known for his benevolence, and highly esteemed for his personal qualities. His residence stood on the south side of Twenty-third street, one door west of Fifth Avenue, and immediately opposite the Fifth Avenue Hotel, in one of the most desirable and fashionable neighborhoods of the city. The mansion itself was palatial, and its owner had not only surrounded himself with every luxury, but had taken every precaution to exclude housebreakers and thieves. But a short time before his death, he remarked to a friend that he believed that his house was as secure as a dwelling could be made.

On the night of the 28th of July, Mr. Nathan slept at his residence, his family, with the exception of two of his sons, being then at their country-seat in New Jersey, where they were passing the summer. One of these sons accompanied his father to his sleeping room towards eleven o’clock, but the other, coming in later, and finding his father asleep, passed to his chamber without saying “good-night,” as was his custom.

On the morning of the 29th, at six o’clock, Mr. Washington Nathan descended from his chamber to call his father to a devotional duty of the day. Entering the chamber of the latter, a most appalling spectacle met his view. His father was lying on the floor in a pool of his own blood, dead, with five ghastly wounds upon his head. The young man at once summoned his brother Frederick, and the two together rushed to the street door and gave the alarm. The police were soon on the spot, and, taking possession of the house, they prepared to investigate the horrid affair. The newspapers spread the intelligence over the city, and the murder created the profoundest interest and uneasiness on the part of the citizens. All classes felt an interest in it, for it had been committed within the sacred precincts of the dead man’s home, where he believed himself to be safe. If a murderer could reach him there, men asked, who could tell who would not be the next victim. This feeling of insecurity was widespread, and the whole community demanded of the police extraordinary efforts in tracking and securing the assassin.

The Superintendent of Police at that time was Captain John Jourdan, who was acknowledged to be the most accomplished detective on the Continent, and his principal assistant was Captain James Kelso (the present Superintendent), who was regarded as next to Jourdan in ability. These two officers at once repaired to the Nathan mansion, and took personal charge of the case.

At the first glance Jourdan pronounced the murder to be the work of a thief. The house was carefully searched. The room bore evidences of a struggle between the dead man and his assassin, and three diamond studs, a sum of money, a Perregaux watch, No. 5657, and the key of a small safe, had been stolen from the clothing of the dead man which had been hung on a chair placed at some distance from the bed. The safe stood in the library beside the door opening into the bed room. Jourdan’s theory was that the thief, having stolen the watch and other articles from the clothing, had gone to the safe to open it, and had aroused Mr. Nathan by the noise he made in opening it. Alarmed by this noise, Mr. Nathan had sprung from his bed, and at the same moment the thief had raised himself up from his kneeling posture, with his face toward Mr. Nathan, and lighted up by a small gas jet which was burning in the chamber. The two men had met in the doorway between the rooms, and the thief, seeing himself identified, had struck Mr. Nathan a blow with a short iron bar curved at the ends, and known as a ship carpenter’s “dog.” A struggle ensued, which resulted in the murder, the assassin striking his victim on the head nine times with terrible force. Then, rifling the safe of its valuable contents, he had gone stealthily down the stairs, had unfastened the front door, which had been carefully secured at half an hour after midnight, and, laying the “dog” down on the hall floor, had passed out into the street. His object in carrying the “dog” to the place where it was found by the police had been to be prepared to make sure of his escape by striking down any one whom he might chance to meet in the hall. Once in the street, the assassin had disappeared in safety.

Both Jourdan and Kelso were agreed that this theory of the

commission of the crime was correct, and this led to the inevitable conclusion that the murder was the work of an “outsider,” that is, of some one not properly belonging to the criminal class. The weapon with which the murder had been committed was one which the Detectives had never before encountered in the annals of crime, and its appearance indicated long use in its legitimate sphere. No burglar or professional thief would have used it, and none of the inmates of the house recognized it as belonging to the mansion. Again, the professional thief would have despatched his victim with more speed and less brutality. There was not the slightest sign of the thief having forced an entrance into the mansion, and the most rigid search failed to reveal the mark of a burglar’s tool on any of the doors or windows. This fact warranted the conclusion that the murderer had secreted himself in the house during the day. From the first Jourdan was convinced that the assassin was one of a class who pursue an honest trade during the day, and seek to fill their pockets more rapidly by committing robberies at night. From this conviction he never wavered.