ITV News has obtained footage of a man with bloodied hands addressing a camera on a south London street.
He makes a series of political statements before walking towards the body of Drummer Lee Rigby, lying prone on the street.
He then talks calmly to another man stood nearby.
A warning that this video contains graphic images of a man with bloodied hands and holding a meat cleaver:
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ITV News has uncovered a video showing Woolwich suspect Michael Adebolajo speaking at a demonstration at Harrow Central Mosque in 2009.
Documents suggest Security Services were trying to recruit Woolwich suspect Michael Adebolajo and had also approached members of his family.
Police in Kenya say they did everything they could to highlight their concerns about Michael Adebolajo.