“From the extensive enquiries that we have carried out we know that there were a number of people in Messina Avenue at the junction with Kilburn High Road shortly before the shooting and there is a possibility that they would have seen two men loitering close to some cars parked in Messina Avenue. The two males were wearing dark clothing and hooded tops, with one wearing a lighter coloured top than the other.
“I am appealing to anyone who remembers walking past these two people to come forward. You may not be aware of the significance of what you may have seen but let us decided whether the information you hold is key to this investigation."
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Kent Police said they believe the driver had been asked to leave the club following an altercation.
Emergency services were called to South Street in Enfield this morning, but the victim was pronounced dead around 30 minutes later.
Scores of flights were cancelled and drivers were warned to take care as the "mini beast from the east" swept in.