President Carter freed a gunman who 'd been imprisoned for attacking Harry Truman . In 1933 , Chicago 's mayor was killed during an attack on Franklin Roosevelt . 1881 : James Garfield , only four months in office , was shot at a railway station in Washington by disappointed office-seeker Charles Guiteau . Teddy Roosevelt was shot while giving a speech in Wisconsin ; he finished the speech . The next year, John F. Kennedy was assassinated by Lee Harvey Oswald ( I'm not making this up ) and Lyndon Johnson became president after his brother Robert died of cancer.
President Carter freed a gunman who 'd been imprisoned for attacking Harry Truman . In 1933 , Chicago 's mayor was killed during an attack on Franklin Roosevelt . Teddy Roosevelt was shot while giving a speech in Wisconsin ; he finished the speech . The next year, John F. Kennedy was assassinated by Lee Harvey Oswald ( I'm not making this up ) and Lyndon Johnson became president after his brother Robert died of cancer.