Police check CCTV footage

Detectives are scouring hundreds of hours of CCTV footage in the hunt for the killers of student Galal Hamza.

Officers hope that one of dozens of cameras in the Earl's Court area where the 25-year-old Somalian was shot will have caught an image of the gunman.

Mr Hamza, who had no record of criminality and who friends described as "educated and unassuming", was shot once in the head in the street in a murder that resembled a gangland execution. He survived the shooting at 2.25am on Sunday but died at 10am on Monday.

He and a friend were followed by three men - two black and one white - after leaving a nightclub near Earl's Court Tube station.

When they reached the junction of Redcliffe Gardens and Old Brompton Road, the two men turned and confronted the three, asking if they were following them.

At that point the white man pulled out a handgun and shot Mr Hamza once in the forehead and aimed another shot at his friend. Though hit in the groin, he managed to escape. The gunman fired a third shot but missed. Detectives say they can find no obvious motive for the attack, but are investigating the background of both men, who are old friends. The surviving victim is under police guard in hospital.

One possibility is that the two men, who were both students, had been involved in an earlier row with the men, or had unwittingly crossed them.

Police are appealing to anyone who may have heard the shots in the early hours. Mr Hamza, a computer studies student in Hammersmith, had been to a salsa club.