The 1865 conspiracy to assassinate Abraham Lincoln also included plans to assassinate other government officials on that same April evening. The actor, John Wilkes Booth, succeeded in killing Lincoln, but his fellow conspirators bungled their attempts to kill William Seward, Andrew Johnson, Ulysses S. Grant, and possibly Edwin Stanton. In Washington, DC, Stanton as head of the investigation was unable to stop Booth and his accomplices from escaping into Virginia due to tangled telegraph wires and an inept police force. The questions that arose following Lincoln's assassination included: (1) was Booth the mastermind behind the plot?; (2) were there government officials such as Edwin Stanton in Washington behind Booth?; (3) was the investigation deliberately delayed to permit Booth to escape?; (4) were Jefferson Davis and other confederate officials supporting Booth?; and (5) was the man who was killed on the Richard Garret farm really Booth or someone else? The lack of vital evidence then and now hindered the answers to the questions. This paper was written to be used as a supplement to a textbook's treatment of Lincoln's assassination, and the appendice contains a 25-item assignment list for students to further their study of the event. A 27-item bibliography for the paper is included. (DJC)