Surveillance camera video appeared to capture the man accused of killing British Member of Parliament Sir David Amess strolling along a street just hours before the fatal stabbing.
Ali Harbi Ali, 25, a UK national believed to be of Somali descent, was captured in the footage wearing a green parka and a backpack slung across his shoulder as he was walking near his North London home early Friday, Sky News reported.
He is believed to have been walking on Highgate Road on his way to the Gospel Oak train station, according to the news outlet.
Investigators are looking into whether Ali boarded a train at the station to travel to Leigh-on-Sea, Essex.
The suspect is being held under the UK’s Terrorism Act, after he was initially arrested at the scene on murder charges. Under British law, that allows them to keep him in custody until Friday before official charges must be filed.
Amess, 69, was killed Friday while holding a regular weekly meeting with constituents at Belfairs Methodist Church in Leigh-on-Sea, Essex, about 40 miles east of London. The Conservative MP, first elected in 1983, was stabbed multiple times.
Police said in a statement that a knife used in the attack was recovered at the scene. As part of the investigation, three addresses in the London area were searched on Saturday.
Ali was referred a few years ago to the country’s counter-terrorism program, called Prevent, which works to stop people from being radicalized.
It was unclear how long he spent in the program, and he was never a formal “subject of interest” to the Security Service, MI5, according to the BBC.