On 22 May 2013, Fusilier Lee Rigby was murdered in broad daylight on a London street. His killers didn't flee, they waited, bloodied weapons in hand, and spoke to camera. It remains one of the most shocking terrorist attacks on British soil.

Neil was a Met police commander in southeast London that day. He reveals what happened inside the Met's leadership team in the minutes after the attack, why it took 15 minutes for armed officers to arrive, and what the footage of those officers' response tells us about the reality of policing.

Together, Andy and Neil examine the uncomfortable questions this case still raises: How were both attackers already known to MI5? Why was hate preacher Anjem Choudary allowed to radicalise young men for decades before being stopped? Should the media have broadcast a terrorist's self-made martyrdom video? And how did the murder of one soldier become the launchpad for a national far-right movement?

Andy was in the newsroom when the infamous footage first surfaced, and at the EDL rally in Newcastle three days later when Tommy Robinson exploited Lee Rigby's death to galvanise thousands. This is the story of how one act of terror fractured British society in ways we're still living with today.

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