Complex sentence: John Wilkes Booth (May 10,1838--April 26,1865) was an American actor who assassinated President Abraham Lincoln at Ford's Theatre in Washington, D.C. on April 14,1865.
Split into simpler sentences: John Wilkes Booth (May 10,1838--April 26,1865) was an American actor and murderer. He assassinated President Abraham Lincoln at Ford's Theatre in Washington, D.C. on April 14,1865.