District of Columbia City Hall Scott Key, (1779–1843), and was sentenced to a mental institution. The building was also the site of the 1867 trial of John Surratt, an alleged conspirator in the assassination of Abraham Lincoln who was later acquitted. However, Charles J. Guiteau, the assassin of President James A. Garfield, was convicted at the courthouse in 1882. The Old City Hall was the scene of a fugitive slave trial known as the "Pearl incident," which was the largest single escape by slaves attempted in U.S. history. Two men were convicted in 1848 of attempting to free more than 70 slaves by sailing them
Charles J. Guiteau over the first time he fired it. Guiteau's pistol was recovered after the assassination, and even photographed by the Smithsonian in the early 20th century, but it has since been lost. On one occasion, Guiteau trailed Garfield to the railway station as the President was seeing his wife off to a beach resort in Long Branch, New Jersey, but he decided to postpone his plan because Garfield's wife Lucretia was in poor health and Guiteau did not want to upset her. Having been alerted to the president's schedule by a newspaper article, on July 2, 1881, he lay in wait