From the description, Mr. Pinkerton was able, on going to Susquehanna, to identify the suspected man with one George H. Proctor, who had formerly been foreman in the railroad company's shops, but had resigned his position some months before and moved to Buffalo. In the investigation that was at once begun it was found that Proctor had recently been speculating largely in oil and spending money freely, although while living in Susquehanna he was known to have had no resources besides his salary. It was learned further that Proctor had deposited money with three Buffalo banks and had accounts with various firms of brokers, and also that he was paying frequent visits to gambling-houses and in general leading a fast life. Proctor's deposits, it was learned, had at one time amounted to about eleven thousand dollars, but most of this sum had been subsequently drawn out and lost in speculation. All of this was strong presumptive evidence against a man who was known to have been poor a few months before, and a more significant discovery was made a little later, when Proctor went on a trip to Canada, evidently on important business. The detective who followed him found that the men with whom he had dealings, and with whom he passed nearly the whole time of his visit, were professional thieves, well known to the police. In view of all that had come to light, it was decided to effect Proctor's arrest. This was made easy by his habit of coming to Susquehanna every few weeks to see his wife and three children, who had remained there. During these visits it had been remarked that he was especially intimate with employees of the railroad and express companies who were connected with the ticket-office. All unsuspicious of the danger that threatened him, Proctor took the train from Buffalo on the night of Saturday, November 16, with a ticket for Susquehanna. Word was at once telegraphed to Robert Pinkerton, who, in company with E. W. Mitchel, superintendent of the United States Express Company, started for Susquehanna, reaching there Monday morning. They learned that Proctor was still in town, but keeping very closely to his house. It was not until ten o'clock in the evening that he appeared on the street, his purpose in going out being to purchase some groceries. As he came from the store Robert Pinkerton stepped forth from his place of waiting and took him into custody. He was taken to a private house, where Mr. Pinkerton passed nearly the whole night in conversation with him. Before daylight Proctor had made what purported to be a full confession.