USA HISTORY

Detailed explanation-1: -Using a .22 caliber revolver, Hinckley wounded Reagan, police officer Thomas Delahanty, and Secret Service agent Tim McCarthy. He critically wounded White House Press Secretary James Brady, who was left permanently disabled in the shooting. John Hinckley Jr.

Detailed explanation-2: -John Hinckley Jr., the man who attempted to assassinate President Ronald Reagan 41 years ago, spoke exclusively with CBS News about the heinous crime, the decades he spent under mental health supervision and his life now. A judge granted Hinckley unconditional freedom earlier this month.

Detailed explanation-3: -In the years leading up to it, Hinckley became obsessed with the film Taxi Driver, and its star, Jodie Foster. Hinckley said he tried to kill Reagan to impress the actress.

Detailed explanation-4: -Garfield (1881, by Charles J. Guiteau), William McKinley (1901, by Leon Czolgosz), and John F. Kennedy (1963, by Lee Harvey Oswald).