Conover testified that he called on Thompson, in the early part of February, 1865, to make some inquiry about the intended raid on Ogdensburg, when Thompson said to him, "There is a better opportunity, a better chance to immortalize yourself and save your country." Conover replied that he was willing to do anything to save the country. Thompson then said, "Some of our boys are going to play a grand joke on Abe and Andy." Upon Conover asking him for a further explanation, he said, "It was to kill them, or, rather, to remove them from office." He said, "it was only removing them from office; that the killing of a tyrant was no murder." He told Conover then, or subsequently, that he had conferred a commission on Booth for this purpose, and would commission all who engaged in it, so that whether it succeeded or failed, if they escaped to Canada, they could not be claimed under the extradition treaty. The Confederate government kept these Canada agents supplied with commissions in blank, to be filled up by them at their pleasure, to cover cases like these. In this conversation of Thompson with Conover, in February, in which he was endeavoring to enlist Conover in the plot, he argued that killing a tyrant in such a case was no murder, and asked him if he had ever read the work entitled, "Killing no Murder," a letter addressed by Colonel Titus to Oliver Cromwell. Mr. Hamlin was to have been included in the scheme, had it been put into execution before the 4th of March. In a subsequent conversation in April, Mr. Hamlin was omitted, and Vice-President Johnson put in his place. We here again see the political intent of this scheme, in that it was the office, not the man, that was really the subject of the blow. Merritt testified to an interview he had with Harper, Caldwell, Randall, Charles Holt, and a man called "Texas," at the Queen's Hotel, in Toronto, on the 6th of April, 1865. Harper said they were "going to the States, and were going to kick up the damnedest row that had ever been heard of." He said to Merritt, an hour or two afterwards, that "if he (Merritt) did not hear of the death of Old Abe, and the Vice-President, and General Dix in less than ten days he might put him down as a damned fool." We have now had abundant proof that Thompson, Clay, Tucker, Sanders, Cleary, etc., were guilty of combining, confederating, and conspiring with Booth, and the others, to assassinate Abraham Lincoln, Andrew Johnson, William H. Seward, etc.; that this plot originated with them, and that they diligently prosecuted the work of preparation for it from October, 1864, until its denouement, in April, 1865. It appears to have engrossed their minds; it was the great subject of conversation in all of their secret conclaves, the great burden of all their thoughts, the very height of their ambition.