British security services face an inquiry by MPs after it emerged that the two suspects in the killing of soldier Drummer Lee Rigby were known to them.
The area where Drummer Rigby was killed on Wednesday had been cordoned off but last night the roads in the area were reopened.
Since then hundreds of floral tributes have been placed at railings beside the murder scene.
As the investigation continues, officials from MI5 are facing an inquiry after it was confirmed that the two suspects were known to them but were not considered a serious risk.
Meanwhile, footage has emerged of the moment police officers shot the men who are being treated in hospital under armed guard.
A man and a woman, both 29, were arrested on suspicion of conspiracy to murder during the investigation into the murder of the 25-year-old soldier, who was hacked to death in Woolwich, southeast London.
Footage emerged of the suspects being shot by armed response officers from the Metropolitan Police.
A clip on the Daily Mirror's website shows one of the men charge at police and drop one of his knives before being gunned down.
His accomplice is seen raising his arm and aiming a handgun at officers before he too is downed, as eight shots ring out in total.
Drummer Rigby was from Crumpsall in Manchester and had a two-year-old son.
He was from the 2nd Battalion of The Royal Regiment of Fusiliers, and was attached to the Regimental Recruiting Team in London.
Scotland Yard has not revealed whether officers have been able to speak to the two men who were shot by police in the wake of the murder.
They remain in hospital in a stable condition with non-life threatening injuries, having been arrested on suspicion of murder on Wednesday.
Six residential addresses were searched yesterday as part of the investigation, three in south London, one in east London, one in north London and one in Saxilby, Lincolnshire, the former home of a man called Michael Adebolajo.
The second attacker has been named in reports as Michael Oluwatobi Adebowale, of Greenwich, southeast London.
Elsewhere, an Islamic centre in Belfast was attacked last night in what the PSNI are treating as a hate crime.
Paint was thrown at the building.in the Wellington Park area of the city.