How did William McKinley die ?
Note : Of the presidents listed above , Zachary Taylor , Abraham Lincoln and William McKinley are the only ones to have a former president die during their administrations and prior to their subsequent deaths ; James Polk died on Zachary Taylor 's 103rd day in office , John Tyler and Martin Van Buren died during Abraham Lincoln 's administration and Benjamin Harrison died 187 days before the assassination of William McKinley .