Detectives are appealing for help to identify a man who died after falling from a hotel more than three years ago.
Police were called at approximately 12:15hrs on 20 March 2014 to the Hilton on Park Lane to reports of an injured man on the fourth floor roof.
Officers and the London Ambulance Service attended but sadly the man was pronounced dead at the scene.
It was established that the man had fallen from the 28th floor. His death is being treated as non-suspicious.
E-fit of man who fell from 28th floor of Hilton Park Lane
E-fit of man who fell from 28th floor of Hilton Park Lane
Despite extensive enquiries, officers have been unable to identify the man and have released an efit of him in the hope that a family member or friend recognises him.
A check of the man's Oyster card - which was not registered with Transport for London - revealed that he regularly travelled around the south London area, specifically Norwood, Crystal Palace and Streatham.
The man is described as black and aged between 40 and 50 years old. He had a medium build and cropped black hair.
At the time of his death, he was wearing a black Lonsdale fleece jacket, a white shirt with light pink and blue large checks, a white vest, grey/brown suit trousers with a black belt, grey socks and black loafers.
PC Gemma Scott, from Westminster Borough, said: "This is a very sad case in which not only has a man lost his life, but it is still possible that his family do not know that he has died.
"I would urge anyone who recognises the man from the efit to come forward and speak with us so that we can finally put a name to him."
Anyone with information is asked to contact officers on 07917 517799 or via 101.