Northern Ireland First Minister Peter Robinson
John Downey walked free from court
The coffin carrying Lt Anthony Daly, a Blues and Royals officer killed in the Hyde Park bombing
Dead horses covered up and wrecked cars at the scene after the Hyde Park explosion
Peter Robinson has threatened to resign unless there is a judicial inquiry into the circumstances behind the collapse of the John Downey trial in London yesterday.
The Northern Ireland First Minister and DUP leader said he was not prepared to remain in a power-sharing administration that is being kept in the dark about such important matters.
Donegal man John Downey, who was charged in connection with 1982 Hyde Park bombing that left four British soldiers dead, walked free from the Old Bailey.
David Cameron has condemned the actions that led to the collapse of the case against suspect Downey as a "dreadful mistake".
The British Prime Minister said the letter giving Downey a false assurance that he was not wanted by British police over the IRA attack should never have been sent and a rapid factual review would be carried out to make sure "this cannot happen again".
Families of the victims of the bloody 1982 attack, in which four soldiers died, said they felt "devastatingly let down" by the decision.
Convicted IRA member Downey (62) of County Donegal, had received a "letter of assurance" in 2007 when in fact there was an outstanding warrant against him.
Mr Cameron told MPs: "We should be absolutely clear. The man should never have received the letter that he received, Downey.
"It was a dreadful mistake and mistake that we now need to have a rapid factual review to make sure that this cannot happen again.
"But whatever happens we have to stick to the principle that we are a country and a government under the rule of law."