A fifth suspect has been arrested in connection with arson attacks on properties linked to Keir Starmer . The Metropolitan Police said a 19-year-old man has been released under investigation after being taken to a police station in Essex for questioning on Wednesday. The suspect, of Harlow, Essex, was arrested on suspicion of conspiracy to commit arson, the force said. Three men are due to stand trial at the Old Bailey in April accused of targeting two properties and a car following the arson