Four US presidents were assassinated, others targeted: All you need to know

Before Saturday's apparent attempted assassination of former President Donald Trump, there have been multiple instances of political violence targeting US presidents, former presidents and major party presidential candidates.

A look at some of the assassinations and attempted assassinations that have occurred since the nation's founding in 1776:

ABRAHAM LINCOLN, the 16th president

Lincoln was the first president to be assassinated, shot by John Wilkes Booth on April 14, 1865, as he and his wife, Mary Todd Lincoln, attended a special performance of the comedy Our American Cousin at Ford's Theatre in Washington.

Lincoln was taken to a house across the street from the theater for medical treatment after he was shot in the back of the head. He died the next morning. His support for Black rights has been cited as a motive behind his killing.

Two years before the assassination, during the Civil War, which was fought over slavery, Lincoln issued the Emancipation Proclamation granting fre