Booth had assigned Lewis Powell to kill Secretary of State William H. Seward. On the night of the assassination, Seward was at his home on
Lafayette Square, confined to bed and recovering from injuries sustained on April 5 from being thrown from his carriage. Herold guided Powell to Seward's house. Powell carried an 1858 Whitney
revolver (a large, heavy, and popular gun during the Civil War) and a
Bowie knife.