Answer: Abraham Lincoln, the 16th President of the United States, was assassinated by well-known stage actor John Wilkes Booth on April 14, 1865, while attending the play Our American Cousin at Ford's Theatre in Washington, D.C. https://en.wikipedia.org/wiki/Assassination_of_Abraham_Lincoln
Explanation:
Vital could mean something that is important or essential.
For example: the lungs and heart are both vital organs in the human body.
