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).
Abraham Lincoln was the first president to be assassinated. He was shot behind his left ear by John Wilkes Booth on April 14, 1865. Sixteen years later, on September 19, 1881, President James A. Garfield was assassinated by Charles J. Guiteau.