From this sworn statement it will be seen that Booth's plan was one of phenomenal audacity. So frenzied was the homicide that he determined to take the President's life at the inevitable sacrifice of his own; for nothing can be more certain than that the murder of Mr. Lincoln on that public occasion, in the presence of a vast concourse of admiring citizens, would have been instantly avenged. The infuriated populace would have torn the assassin to pieces, and this the desperate man doubtless knew. It is a curious fact, that, although Mr. Lincoln believed that his career would be cut short by violence, he was incorrigibly skeptical as to the agency in the expected tragedy, with one solitary exception. Elderly residents of Washington will remember one Gurowski, a Polish exile, as many believed. He was an accomplished linguist, a revolutionist by nature, restless, revengeful, and of a fiery and ungovernable temper. He had been employed in the State Department as a translator, I believe, but had quarrelled with Mr. Seward and was discharged. This caused him to pursue Lincoln, Seward, and Sumner with bitter hatred. The curious will find in a published diary of his a fantastic classification of his enemies. The President he rated as "third-class," according to his estimate of statesmanlike qualities. From this man Gurowski, and from him alone, Mr. Lincoln really apprehended danger by a violent assault, although he knew not what the sense of fear was like. Mr. Lincoln more than once said to me: "So far as my personal safety is concerned, Gurowski is the only man who has given me a serious thought of a personal nature. From the known disposition of the man, he is dangerous wherever he may be. I have sometimes thought that he might try to take my life. It would be just like him to do such a thing." The following letter was written one night when I was much annoyed at what seemed to me Mr. Lincoln's carelessness in this matter:-- WASHINGTON, D. C. Dec. 10, 1864, 1.30 o'clock, A. M. _Hon. A. Lincoln_: