Of the eight US Presidents who died in office, four were assassinated and four died of other causes. Assassinated were Lincoln (1865), Garfield (1881), McKinley (1901) and Kennedy (1963). The others are:
William Henry Harrison- April 4, 1841- pneumonia
Zachary Taylor- July 9, 1850- gastroenteritis
Warren G. Harding- August 2, 1923- heart attack
Franklin D. Roosevelt - April 12, 1945- cerebral hemorrhage
The related link gives a list showing the cause of death for each President.
the vice president
vice president
The vice president.
The Vice President
vice president
The Vice President
Vice President
William Henry Harrison was the first US president to die in office.
Speaker of The House
If the Vice President dies the president remains president.
The vice president takes office if the president dies.
US President Abraham Lincoln was the first US president to be assassinated. He was not the first to die in office, however. The ninth US president, President William Henry Harrison died shortly after his inauguration in 1841. John Tyler, the vice president then took over as president as per the US Constitution. The 12th US President, Zachary Taylor died in office in 1850.