Causes of Abnormal Mucus in the Stool. Examples of conditions that can be responsible for abnormal mucus in the stool can include Irritable Bowel Syndrome--including Ulcerative Colitis and Crohn's Disease (an extremely inflammatory condition)--infection and mechanical obstruction.
Assassination and Death. Four sitting Presidents have been assassinated while in office: Abraham Lincoln, James Abram Garfield (1881), William McKinley (1897-1901), and John F. Kennedy (1961-63).
On Nov. 22, 1963, while on a campaign trip to Dallas, President Kennedy was shot and killed. There are only two U.S. presidents buried at Arlington National Cemetery. The other is William Howard Taft, who died in 1930.