LONDON: British Prime Minister Boris Johnson has laid flowers outside the church where a lawmaker was stabbed to death on Friday, and police were given more time to question the man detained under terrorism powers on suspicion of murder. The attack on David Amess, from Johnson's Conservative Party, comes five years after the murder of Jo Cox, a lawmaker from the opposition Labour Party, and has prompted a review of the security of elected politicians. Amess, 69, was knifed repeatedly in the attack in Leigh-on-Sea, east of London, during a meeting with constituents in a church.