London comes to grips with the brutal slaying of Lee Rigby
Britain's Prime Minister David Cameron visits an army barracks near the scene of a killing in Woolwich, southeast London May 23, 2013. British authorities believe that two men accused of hacking a soldier to death on a London street in revenge for wars in Muslim countries are British of Nigerian descent, a source close to the investigation said Thursday.LUKE MACGREGOR/Reuters
A police officer carries flowers near the scene of the killing of a British soldier in Woolwich, southeast London May 23, 2013. The soldier was hacked to death on Wednesday by two men shouting Islamic slogans in a south London street, in what Prime Minister David Cameron said appeared to be a terrorist attack.LUKE MACGREGOR/Reuters
The Commissioner of the London Metropolitan Police Bernard Hogan-Howe leaves 10 Downing Street in London, Thursday, May 23, 2013, following a meeting of Cobra. The British government's emergency committee (Cobra) met Thursday after two attackers butchered a British soldier in a daylight attack in London that raised fears terrorism had returned to the capital.Alastair Grant/The Associated Press
An England flag is draped over a balcony in Woolwich, southeast London May 23, 2013. A British soldier was hacked to death in Woolwich on Wednesday by two men shouting Islamic slogans in a south London street, in what Prime Minister David Cameron said appeared to be a terrorist attack.LUKE MACGREGOR/Reuters
A wooden cross and a poppy, left as a tribute, are seen near the scene of the killing of a British soldier in Woolwich, southeast London May 23, 2013.LUKE MACGREGOR/Reuters
A police officer carries flowers near the scene of the killing of a British soldier in Woolwich, southeast London May 23, 2013. The soldier was hacked to death on Wednesday by two men shouting Islamic slogans in a south London street, in what Prime Minister David Cameron said appeared to be a terrorist attack.NEIL HALL/Reuters
Police officers stand near the scene of the killing of a British soldier in Woolwich, southeast London May 23, 2013.LUKE MACGREGOR/Reuters
Two soldiers walk past floral tributes placed near the scene of the killing of a British soldier in Woolwich, southeast London May 23, 2013.LUKE MACGREGOR/Reuters
A man walks past a building with the shutters pulled down in Woolwich, southeast London May 23, 2013.LUKE MACGREGOR/Reuters
Britain's Prime Minister David Cameron returns to 10 Downing Street after speaking to the media about the killing of a British soldier, in London May 23, 2013.OLIVIA HARRIS/Reuters
A police officer carries an evidence bag containing a knife near the scene of the killing of a British soldier in Woolwich, southeast London May 23, 2013.NEIL HALL/Reuters
A female soldier stands outside the military barracks, near the scene of the killing of a British soldier in Woolwich, southeast London May 23, 2013.LUKE MACGREGOR/Reuters