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 life. Although none of his fellow passengers on the "Stonington" were injured, the incident left Guiteau believing that he had been spared for a higher purpose. Guiteau's interest then turned to politics. During the 1880 presidential campaign, the Republican Party was largely split into factions -- the Stalwarts, led by Roscoe Conkling, who supported Ulysses S. Grant for a third term, and the Half-Breeds, who supported James G. Blaine. Guiteau wrote a speech in support of Ulysses S. Grant called "Grant against Hancock", which he revised to "Garfield against Hancock" after Garfield (not affiliated with either faction) won the Republican