Police were called at 7.19pm on Saturday, 10 April to reports of a stabbing near the junction of Hazel Grove and Sydenham Road.
Officers attended, along with the London Ambulance Service, and found a male with a stab injury. Despite their best efforts he was pronounced dead shortly after 8pm.
He has since been identified as 17-year-old Levi Earnest-Morrison. His family has been informed and are being supported by specialist officers.
A post-mortem examination held on Monday, 12 April gave Levi’s preliminary cause of death as a stab wound leading to catastrophic bleed.
An investigation is underway and is being led by detectives from the Met’s Specialist Crime Command.
A 35-year-old woman was arrested on suspicion of the murder of Sunday, 11 April and remains in custody.
Detective Chief Inspector Mick Norman, who is leading the investigation, said: “We are appealing for anyone who was in the area on Saturday evening to come forward and speak with us. One piece of information, no matter how small, could prove vital in us being able to provide Levi’s family with the answers they need.”
Anyone who witnessed the incident is urged to call 101, providing the reference CAD6072/10APR.
Information can also be provided to Crimestoppers, anonymously, by calling 0800 555 111.
Hard calls save lives. Are you close to someone on the fringes of knife crime? Do the right thing, please give information 100 per cent anonymously through the independent charity Crimestoppers. It can feel like a hard call, but it could save the life of someone you love.
No piece of information about knife crime is insignificant or too small. Any information you give to Crimestoppers can make a difference in reducing knife crime and the harm it causes to families.
They never ask your name and they cannot trace your call, your IP address or the device you use. Fill in their quick online form or call 0800 555 111. It could save a life.