President Barrack Obama has paid tribute to former ex-US press secretary James Brady who was wounded during the 1981 assassination attempt on president Ronald Reagan.
Mr Brady has died at the age of 73.
In a statement, the president referred to Mr Brady as a "legend" and sent his condolences to his family.
Mr Obama said since 1993, the law that bears Mr Brady's name has kept guns out of the hands of "dangerous individuals", adding: "An untold number of people are alive today who otherwise wouldn’t be, thanks to Jim.
"Our thoughts and prayers are with Jim’s wife Sarah, who has been Jim’s steadfast partner in advocacy, and their children Scott and Melissa."
Former first lady Nancy Reagan has called former ex-US press secretary James Brady "the personification of courage and perseverance," NBC reports.
Mr Brady, who was wounded during the 1981 assassination attempt on president Ronald Reagan, has died aged 73.
Mrs Reagan also recalled the "unspeakable fear" she shared with Brady's wife, Sarah, at the hospital after the assassination attempt, saying "the bond we established then was unlike any other."
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.
The close bond between Margaret Thatcher and Ronald Reagan was almost broken over the US invasion of the Caribbean island of Grenada in 1983.
Official documents released by the National Archives reveal the then-US President only informed Downing Street of the plan the night before troops moved in.
Mrs Thatcher said she was "deeply disturbed" by the military action.
An auction house in the Channel Islands has cancelled the auction of a vial said to contain a sample of former US President Ronald Reagan's blood, NBC News reports.
The Guernsey-based PFC Auction house said the seller will donate the item to the late president's foundation for display instead of auctioning it off.
Previously, the Reagan family and foundation had condemned the sale, saying it would use "every legal means" to stop it.