British lawmaker David Amess, a member of Boris Johnson's ruling Conservative Party, died after being stabbed several times at a constituency meeting east of London.
Amess, 69, a member of Parliament who represented Southend West in Essex, was attacked at around midday Friday by a man who walked into a meeting with voters from his electoral district being held in a Methodist Church in Leigh-on-Sea.
"He was treated by emergency services but, sadly, died at the scene," Essex police said.
Here's what else we know about the investigation:
The suspect: A 25-year-old man arrested on suspicion of murdering Amess on Friday is believed to be a British national with Somali heritage, official sources have told the PA news agency. "A 25-year-old man was quickly arrested after officers arrived at the scene on suspicion of murder and a knife was recovered," Essex police said.
The investigation: The UK's Counter Terrorism Command will lead the investigation into the murder, police said later Friday. "It will be for investigators to determine whether or not this is a terrorist incident. But as always, they will keep an open mind," Ben-Julian Harrington, Chief Constable of Essex Police, told reporters.
Britain's second murdered lawmaker in five years: The killing was another grim moment in Britain's political history. It marks the second murder of a sitting British lawmaker in five years, after Labour MP Jo Cox was killed in her constituency in 2016, and has reignited discussions about the safety of the UK's elected officials.
In March, Amess asked a question in Parliament about how to stop "senseless murders" with knives, after a teenager in his constituency was killed in a knife attack.
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