Final answer:
John Wilkes Booth assassinated Abraham Lincoln at Ford's Theatre in Washington D.C.
Step-by-step explanation:
John Wilkes Booth assassinated Abraham Lincoln in April 1865. The assassination took place at Ford's Theatre in Washington D.C. during a performance of the play 'Our American Cousin.' Booth shot Lincoln in the back of the head while the President was sitting in a private box.
Learn more about Assassination of Abraham Lincoln