A post-mortem examination of Josh Hanson 's body has revealed the 21-year-old died from a stab wound to the neck.
Josh was tragically killed at the RE Bar in Eastcote on Sunday (October 11).
Pathologists carried out the examination at Uxbridge mortuary on Tuesday (October 13) and , according to Metropolitan Police , gave cause of death as "haemorrhage, inhalation of blood and an incised wound to the neck".
Josh lived with his mum and sister in Kingsbury . He had a girlfriend and worked as a roads planner at Stanmore Quality Surfacing (SQS), near Brent Cross.
A national manhunt is still under way to find 27-year-old Shane O'Brien, who police want to speak to in connection with the killing. Officers said he could be "anywhere in the UK".
He is described as a white male, 6ft tall, and of muscular build. The Met said he should not be approached by members of the public.
Mr O'Brien has links to the Ruislip area but police believe he could be anywhere in the country. Any sightings of him should be reported to police immediately on 999.
Police have put up a £10,000 reward for information leading to Mr O'Brien's arrest and prosecution.
Anyone with information about his whereabouts can call the incident room on 020 8785 8099 or contact Crimestoppers anonymously on 0800 555 111 or via crimestoppers-uk.org .
There have been no arrests at present and enquiries continue.
