Union Army soldier Boston Corbett — who served time in the notorious Andersonville prison camp during the U.S. Civil War — is best know for what?

Union Army soldier Boston Corbett — who served time in the notorious Andersonville prison camp during the U.S. Civil War — is best know for what?

Invented the typewriter
First man to die in an airplane crash
Discovered the planet Pluto
Founded the Communist Party USA
Killed John Wilkes Boothe

The Answer: The correct answer is Killed John Wilkes Boothe.