David Herold - Wikipedia

David Edgar Herold (June 16, 1842 – July 7, 1865) was an accomplice of John Wilkes Booth in the assassination of Abraham Lincoln on April 14, 1865. After the shooting, Herold accompanied Booth to the home of Dr. Samuel Mudd, who set Booth's injured leg. The two men then continued their escape through Maryland and into Virginia, and Herold remained with Booth until the authorities cornered them in a barn. Herold surrendered, but Booth was shot and died a few hours later. Herold was sentenced to death and hanged with three other conspirators at the Washington Arsenal, now known as Fort Lesley J. McNair.