Blue Stevens from Yateley, Hampshire was found injured in Seville Street just after 9.40pm on July 9.
Officers attended, however, he was pronounced dead shortly after.
His next-of-kin are aware and will continue to receive support from specialist officers.
No arrests have yet been made.
Detectives from the Specialist Crime Command, supported by local officers, are pursuing several lines of enquiries.
More officers, both uniformed and plain-clothed, are expected to be on patrol in the area.
BCU Commander Christina Jessah, who leads policing in Central West London and the Royal Parks, said: “Our thoughts remain with Blue’s loved ones following this tragic incident and they continue to be supported by specialist officers.
“They have asked for their privacy as they come to terms with Blue’s death.
“We are working at pace to establish the exact circumstances and advise people avoid speculating while we continue our enquiries.
“We understand the impact this incident has had on the local community and local businesses.
“That is why we have increased the number of police on patrol in the area and I encourage the public to speak to them if they have any questions or concerns.”
Call police on 0208 721 4961 referencing CAD 8521/09JUL if you were a witness or have any information which might help.
You can also call Crimestoppers anonymously on 0800 555 111 or visit crimestoppers-uk.org.
