Whilst the Government is not ruling out the possibility that the Woolwich attacks were part of a wider conspiracy, as far as they see it tonight there is no sign that that is the case.
Politically there may end up being broader questions about this - even to the extent of whether it should be classed as a terrorist attack at all.
People will be asking whether people acting on their own, mouthing an incoherent political philosophy, should be considered as any different to day-to-day criminality that we see in the courts on a regular basis.
More top news
A man is risking his life to bring joy to children in Syria by smuggling toys into the war-torn country.
A dead whale - believed to be a minke whale - has washed up on a Devon beach between Dawlish and Dawlish Warren.
The trade secretary has said the UK "has a golden opportunity to forge a new role for ourselves in world" outside of the EU.