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 stream of curses and obscenities before he was taken away by guards to his cell to await execution. Guiteau appealed his conviction, but his appeal was rejected. 29 days before his execution, Guiteau composed a lengthy poem asserting that God had commanded him to kill Garfield in order to prevent Secretary James G. Blaine's "scheming" to war with Chile and Peru. Guiteau also claimed in the poem that Chester A. Arthur knew the assassination had saved the United States and that Arthur's refusal to pardon him was the "basest ingratitude". Guiteau also (incorrectly) presumed that President Arthur would pressure the