The Most Notable Assassins in U.S. History

Leon Czolgosz, 1901
The reclusive, bizarre anarchist didn't like the way governments granted power to only an elite few, so he took matters into his own hands. On Sep. 6, 1901 he shot President McKinley as the leader greeted the public at the Pan American Exposition in Buffalo, New York. McKinley died the following week. Justice was swift for Czolgosz, and he was executed a month and a half later, on October 29.

• Mourning the Victims of the Arizona Shooting