Ford's Theatre in 1865, draped in black

Diagram of Ford's Theatre

The President was shot by John Wilkes Booth on April 14, 1865 during a performance of Our American Cousin. Booth shot Lincoln in the head in the Presidential box, then leapt from the box to the stage, twelve feet below (breaking his ankle in the process). He crossed the stage and exited through a rear door to an alley behind the theater.
 
Sketch of Ford's Theatre as it was at time of assassination