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).
As of 2014, there have been four US Presidents that have died in  office of natural causes. The presidents include William Henry  Harrison, Zachary Taylor, Warren G. Hardingâ¦, and Franklin D.  Roosevelt.