It is just as well to get better acquainted with Oppegaard because he was a vital link in Fay’s undoing. His real name was Paul Siebs and for the purpose of this story he might as well be known by that name. Siebs had also been in this country in earlier days and during his residence in Chicago, from 1910 to 1913, he had gotten acquainted with young Brietung. He, too, had gone back to Germany before the war, but soon after it began he had come back to the United States under his false name, ostensibly as an agent of an electrical concern in Gothenburg, Sweden, for the purpose of buying copper. He frankly admitted later that this copper was intended for re-export to Germany to be used in the manufacture of munitions of war. He did not have much success in his enterprise and he was finally forced to make a living from hand to mouth by small business transactions of almost any kind. He could not afford a separate office, so he rented desk room in the office of the Whitehall Trading Company, a small subsidiary of the Raymond-Hadley Corporation. His desk was in the same room with the manager of the company, Carl L. Wettig. When Brietung asked Siebs to buy him some chlorate of potash Siebs was delighted at the opportunity to make some money and immediately undertook the commission. He had been instructed to get a small amount, perhaps 200 pounds. He needed money so badly, however, that he was very glad to find that the smallest kegs of the chlorate of potash were 112 pounds each, and he ordered three kegs. He paid for them with money supplied by Brietung and took a delivery slip. Ultimately this delivery slip was presented by Scholz who appeared one day with a truck and driver and took the chemical away. Fay and Scholz made some experiments with the chlorate of potash and Fay decided it was not strong enough to serve his purpose. He then determined to try dynamite. Again he wished to avoid suspicion and this time, after consultation with Kienzle, he recalled Bronkhorst down at the Lush Sanatorium in New Jersey. Bronkhorst, in his work as superintendent of the grounds at the sanatorium, was occasionally engaged in laying water mains in the rocky soil there, and for this purpose kept dynamite on hand. Fay got a quantity of dynamite from him. Later, however, he decided that he wanted a still more powerful explosive.