Imran Farooq followedin UK before murder

British police on Wednesday released new images of Pakistani politician Imran Farooq just before he was stabbed to death in London, and said he may have been followed before the attack.Farooq, 50, a founding member of the Muttahida Qaumi Movement (MQM), died from stab wounds and head injuries after attackers pounced on him as he returned from work on September 16. Detectives revealed that he was killed with two kitchen knives sold in discount stores and online and a house brick may also have been used in the attack.CCTV footage of his final hours, released by police, includes images of him at an underground train station as he travelled to work on the morning of his death. Police believe the attack may have been carried out by up to four Asian men who had been in vehicles or on foot near Farooqs home in north London at various times of the day.One suspect vehicle was a silver seven-seater people-carrier with green minicab stickers in the window. Police also want to trace the rider of a dark-coloured moped or scooter seen near the politicians home. A Scotland Yard spokesman said: We retain an open mind as to a motive.A 34-year-old man arrested on suspicion of the murder was freed on bail in December and bailed to return to a police station this month. Investigators are also hunting two men of Asian appearance seen in the area of the murder and have released a computer image of one of them.