The Met Police has issued a fresh appeal for information as they try to solve the murder of Dr Imran Farooq in Edgware in September 2010. Dr Farooq was a Pakistani politician and detectives believe he was planning to renew his political career before he was killed.
They are asking anyone who was in contact with him about his plans to get in touch with them so they can build up a picture of his political life.
A reward of up £20,000 has been offered for anyone providing information that leads to Dr Farooq's killer. The Met believes his murder was planned and several people may have been involved.
More top news
The threat level has been raised to critical by MI5's Counter-Terrorism Analysis Centre.
Sam Allardyce has quit as manager of Crystal Palace and retired from football management.
Authorities named Salman Abedi as the suspected attacker who detonated a bomb at the Manchester Arena.