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
Edward Charles Spitzka Hospital. He was a professor of nervous and mental diseases and of medical jurisprudence at the New York Post-Graduate Medical College from 1882 to 1887. In 1890, Spitzka served as President of the American Neurological Society. In 1883/1884, he served as President of the New York Neurological Society. Spitzka was the attending physician at the execution of William Kemmler in New York's Auburn Prison on August 6, 1890, the first execution using the new electric chair. In 1881, Spitzka was an expert witness at the trial of Charles J. Guiteau, who was accused of the assassination of United States President