The White House press secretary, who was wounded during the 1981 assassination attempt on president Ronald Reagan, has died aged 73, his family announced.
James Brady undertook a personal crusade for gun control after he suffered a devastating head wound outside the Washington Hilton Hotel on March 30, 1981.
A federal law requiring a background check on handgun buyers bears Brady's name.
Although Brady returned to the White House only briefly, he was allowed to keep the title of presidential press secretary and his White House salary until Reagan left office in January 1989.
The Brady Campaign to Prevent Gun Violence is named in his honour.
More top news
Tony Blair warns that we should brace ourselves for a struggle against the Islamic State that could last a lifetime.
If last week was about "country before party" this week it's a very different story.
Sixties wildchild Marianne Faithfull has slammed pop stars Miley Cyrus and Rihanna as 'rubbishy sluts'.