Detectives are releasing images of a man believed to be a stowaway after his body fell from a plane flying into Heathrow.
No one came forward to identify his body after it was discovered in the middle of Portman Avenue, Mortlake, south west London, in September.
The man, believed to be in his 30s, suffered multiple injuries. One local resident said the scene looked like a "melon being whacked."
He is believed to be an African man aged between 20 and 30 years old. He is 5 feet 4 inches tall and of slight build.
It is possible he was from Angola as he was found with Angolan money in his pockets and a flight from Luanda, Angola, was overhead prior to the body being found.
He was wearing jeans, a grey hoody and white trainers and was not a member of air crew or a passenger. He had a tattoo with a very distinctive emblem and the letters ' Z ' and 'G ' clearly visible, a picture of which has been released by the Met Police.
A post-mortem was held at Kingston Hospital Mortuary on 11 September and gave the cause of death as multiple injuries.
Portman Avenue resident Joe Dodd told London's Evening Standard at the time of the fall: "When I got up at eight, the body was still on the pavement. They had not moved it.
"There was loads of blood everywhere, all over the street and on a car."
A local resident, who did not want to be named, told the Daily Mail: "No one saw him fall because it was early on a Sunday morning.
"But just imagine a melon being whacked and that is how he was. He was face down with his feet by the wall and his head by the kerb. There was a lot of blood. I just felt sorry for the guy.
"It has been a bit sombre and it's quite creepy. It was a good six hours before it was all clean. The council (employee) had to come and clean it and he just had a broom and a bucket."
Although police have released few details about how they believe he came to die, Chris Yates, aviation analyst at Yates Consulting told the Huffington Post UK people usually smuggle themselves into the undercarriage of a jet aircraft.
"It's usually from places in Africa, and the Far East. These people get on board airplanes, usually at airports where perimeter security isn't as tight as it should be," he says.
"In the instance here, it's my understanding that the police haven't revealed too much information. But it's likely that he would have entered an airport through an insecure perimeter, climbed into the undercarriage of a jet aircraft, thinking he'd make the great escape.
"But when you get up to an altitude, you're starved of oxygen, you die. Then when the undercarriage is opened on descent you fall out."
An Inquest has opened and been adjourned at West London Coroners Court.
Officers are keen to identify the man so that next of kin can be informed.
Anyone with information that can assist is asked to call officers on 0208247 7254; if you wish to remain anonymous call Crimestoppers on 0800 555 111.Suggest a correction