CLEAN : London mosque attacker acted alone: police

The transcript discusses a terrorist attack in London, detailing the incident, the investigation into the cause of death, and the classification of the event as a terrorist attack. It emphasizes the importance of unity against extremism and provides information on the attacker, who acted alone. The investigation is ongoing to understand the full circumstances.

What does the investigation aim to determine about the death of the man?

What stance is taken towards the motivations behind the attack?