John Warnock Hinckley Jr. (born May 29, 1955) is an American man who attempted to assassinate U.S. President Ronald Reagan in Washington, D.C. on March 30, 1981, two months after Reagan's first inauguration. 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.