Henry McDonald is in Derry on a day of mixed emotions for families of those killed on a civil rights march in the city on 30 January 1972. The day came to be known as Bloody Sunday and was one of the most infamous of the Troubles.
Today, after 12 years and at a cost of £191m, Lord Saville published his report into the actions of the British army. David Cameron announced the findings in the House of Commons and said: "What happened on Bloody Sunday was both unjustified and unjustifiable. It was wrong."
Later, he apologised on behalf of the British government.
From outside Derry's Guildhall, we hear the reaction of the families of those killed or wounded 38 years ago.
We speak to the Guardian's former Northern Ireland correspondent Simon Winchester who looks back on the day of the shootings and being caught in the gunfire.
In Westminster, Michael White hears how the statement was received by MPs.
In a moving speech in the house, Mark Durkan, the SDLP MP for Foyle, read out the names and ages of the victims.
Angus Robertson, leader of the Scottish National Party in Westminster said he was "gobsmacked" by the findings. David Davis, a Conservative MP with military experience, said it now remained to see "what happens next".
On that issue, we hear from the Guardian's security editor Richard Norton-Taylor. He says the Army will need to digest the report and think carefully about its next move. None of the soldiers on duty on the fateful day are still employed by the army.
Owen Bowcott, another of the Guardian's former Northern Ireland correspondents was also in Derry. He looks at the prospect of prosecutions and the involvement of Martin McGuinness on the day of violence.
