As per my knowledge, there have been 4 presidents that have been assassinated while in office. Here is the complete list, in chronological order:
Abraham Lincoln
James A. Garfield
William McKinley
John F. Kennedy
Abraham Lincoln, the 16th President of the United States, died on April 15, 1865. He was assassinated on the evening of April 14, 1865, by John Wilkes Booth, a Confederate sympathizer and actor. Booth shot Lincoln in the back of the head while he was attending a play, "Our American Cousin," at Ford's Theatre in Washington, D.C. Lincoln was taken to a nearby boarding house where he remained unconscious until he passed away the following morning, April 15, 1865. His death marked a significant loss for the nation, and he became a revered figure in American history, known for his leadership during the Civil War and his efforts to end slavery through the Emancipation Proclamation.
James A. Garfield, the 20th President of the United States, died on September 19, 1881. He was assassinated on July 2, 1881, by Charles J. Guiteau, a disgruntled office-seeker. Garfield was shot at the Baltimore and Potomac Railroad Station in Washington, D.C. and suffered from serious gunshot wounds. Despite receiving medical attention, Garfield's condition worsened due to infection from the wounds, and he eventually succumbed to his injuries almost three months later on September 19, 1881. His death was a significant loss to the nation, as Garfield's presidency was cut short just six months after he took office, and he became the second U.S. president to be assassinated while in office.
William McKinley, the 25th President of the United States, died on September 14, 1901. He was assassinated on September 6, 1901, by Leon Czolgosz, an anarchist. McKinley was attending the Pan-American Exposition in Buffalo, New York, when Czolgosz shot him twice in the abdomen while he was greeting the public in a receiving line at the Temple of Music. McKinley was immediately taken to a nearby hospital for medical treatment, but his condition worsened due to gangrene caused by the gunshot wounds. He passed away eight days later on September 14, 1901. McKinley's assassination was a profound tragedy for the nation, and his vice president, Theodore Roosevelt, succeeded him as president.
John F. Kennedy, the 35th President of the United States, was assassinated on November 22, 1963. He was shot and killed while riding in a motorcade through Dealey Plaza in Dallas, Texas. The assassination took place during a public event, and Kennedy was fatally struck by two bullets. Lee Harvey Oswald was arrested for the assassination but was killed two days later by Jack Ruby, a nightclub owner, before he could stand trial. Kennedy's death was a profound and shocking event that deeply impacted the nation. He was the fourth U.S. president to be assassinated while in office, and his legacy continues to be remembered and celebrated to this day.
~~~Harsha~~~