Police investigating the murder of Josh Hanson have reissued an appeal on Twitter to trace a wanted man.
Shane O'Brien, 29, is wanted in connection with the death of the 21-year-old, who was killed in an unprovoked attack in Eastcote on October 11 2015.
On Twitter they wrote: "Shane O'Brien, 29, still sought for murder of Josh Hanson in Hillingdon - call 999 with any info."
They believe Mr O'Brien, who is originally from Ladbroke Grove, has fled overseas.
A £20,000 reward for information leading to his arrest and prosecution is still on offer.
Josh, from Kingsbury, Brent, was stabbed in the neck at the RE Bar in Eastcote, Field End Road, shortly after 1am.
He was sadly pronounced dead the scene.
A post mortem performed on Josh gave cause of death as haemorrhage, inhalation of blood and an incised wound to the neck.
The attack was described by police as "brutal and unprovoked".
Renewed appeals to find O'Brien were made in October on the anniversary of Josh's death.
His mum Tracey told getwestlondon of her anguish at losing her son, saying it "gets harder every day" .
And she also spoke of how the search for justice was adding to the pain for his family.
Mr O'Brien has been described as "one of Britain's most wanted fugitives" and is on the wanted lists of Crimestoppers and the National Crime Agency.
At that time it was believed he could be hiding in the Netherlands. Information later indicated he had travelled to Dubai.
Mr O’Brien is white, 6ft with grey eyes and short dark brown hair, and may use the name Troy O’Brien.
He has a distinctive tattoo on his back that says ‘Shannon 15-04-06’.
He should not be approached by members of the public, and any sightings of him should be reported to police on 999.
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