Police want to speak to a woman who they believe may be able to help them find the killer of Enayit Khalili.
Mr Khalili, 26, was found injured at his home in Fiennes Road, Rose Hill on Saturday, March 24 at 3.30am. He died later that day.
A week later, on Saturday, March 31, police stopped dozens of motorists driving near the scene of the killing.
As a result they want to speak to a woman who they believe was using a telephone kiosk on the corner of Fiennes Road and Ashurst Road, a short distance from Mr Kahlili's home at the time he was attacked.
Click here to see our video of an appeal by Mr Khalili's relatives
Det Ch Insp Andy Boyd said: "I would like to thank the motorists we stopped for their help and cooperation, as well as the media for their help in our recent appeal for information.
"As a result of these, a number of people have contacted us with valuable details.
"This includes the information a woman was making a call from this phone box, which is just yards from Enayit's house.
"We are appealing for her to come forward: even though she may not realise it, she may have seen something that could prove vital to our investigation."
Anyone with information can contact Det Chief Insp Boyd on 08458 505505.
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