Police have until Friday to question the suspect
Police are studying CCTV images taken close to the home of the man suspected of killing Sir David Amess.
Video footage shows a man walking with a backpack across his right shoulder and his hand in his left pocket.
It was filmed from outside a convenience store on Highgate Road, Kentish Town, at 8.44am on Friday (October 15), just hours before the attack.
Police have been questioning 25-year-old suspect Ali Harbi Ali over the attack, who is thought to live at a house in nearby Lady Somerset Road. This residence was searched by officers over the weekend.
https://www.youtube.com/watch?v=x5W393IqTr8&t=2s
The manager of the shop that provided the footage told the
Daily Mail that a detective visited him on Sunday (October 17) looking for the footage.
Ismet Cengiz told the publication: "She said she was investigating the MP's murder and asked to have a look at the CCTV footage.
"They wanted to look at the street outside between 8.30 and 9am. After a while, the officer said she had found what she was looking for and took the footage."
Amess was killed on Friday morning after
being stabbed several times while holding a surgery in his constituency of Southend West.
Police have until Friday October 22 to question the suspect.
Scotland Yard has already said the early investigation revealed a "potential motivation linked to Islamist extremism."
But it is thought Mr Ali had never been a subject of interest for security services.
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