Woolwich attack investigation into murder continues
The investigation is continuing into the killing of Drummer Lee Rigby in Woolwich, south-east London, on Wednesday.
The UK's security services face a Commons inquiry after it was confirmed murder suspects Michael Adebolajo and Michael Adebowale were known to MI5.
Both remain under armed guard in separate London hospitals in stable conditions with non-life-threatening injuries.
Frank Gardner reports.
24 May 2013