Oxford Street stabbing CCTV released
Police investigating the murder of a man in a shop on London's Oxford Street on Boxing Day have released CCTV images of witnesses they want to speak to.
Seydou Diarrassouba, 18, of Mitcham, south London, was stabbed in Foot Locker near Bond Street Tube station.
Scotland Yard has released five CCTV stills - four from the Foot Locker store and one from another store.
Police said they wanted to track the people down to confirm if they witnessed the incident.
Det Ch Insp Kevin Concannon said: "Whilst continuing to investigate this tragic stabbing last Boxing Day, it has become apparent that there are a number of witnesses to the incident who have not yet come forward
"It is vital we are able to speak to them so that we have a clear understanding of what happened that day.
"I would encourage anyone who was there and who has not yet spoken to police to contact us."
A post-mortem examination revealed Mr Diarrassouba died from a single stab wound to the heart.