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A police officer guards the scene of a knife attack on August 4, 2016 in London.
A police officer guards the scene of a knife attack on August 4, 2016 in London.

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    Terrorism ruled out in deadly London knife attack

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Terrorism ruled out in deadly London knife attack

Authorities have ruled out terror in the deadly knife attack in central London. CNN's Phil Black has more on how the investigation unfolded.

Terrorism ruled out in deadly London knife attack

Authorities have ruled out terror in the deadly knife attack in central London. CNN's Phil Black has more on how the investigation unfolded.