Charles J. Guiteau
Charles Julius Guiteau ( ; September 8, 1841June 30, 1882) was an American writer and lawyer. He is best known as the person who assassinated US President James A. Garfield  on July 2, 1881. Guiteau shot Garfield after being angry with him about not receiving credit or a reward for Garfield's victory in 1880. Guiteau wrote a speech about Garfield but never made the speech.