Three men have been charged with the murder of 19-year-old Tyler Donnelly in Feltham.
Officers were called at 7:40am on Thursday January 25 after the teenager's body was found by joggers in Hanworth Park. He had been assaulted and stabbed.
An investigation was launched and on Sunday three men were arrested.
Daniel Matos, 21, of Craston Close, Hounslow, Keith Preddie, 32, of Shore Close, Feltham, and Joshua Cowley, 27, of Avonwick Road, Hounslow, were charged with murder on Tuesday.
They are due to appear in custody at Westminster Magistrates' Court on Wednesday.
Tyler's family have been informed of this development and continue to be supported by family liaison officers.
A post-mortem examination carried out on Saturday confirmed he died as a result of a stab wound to the neck, the Met said in an update.
A spokesman said: "The investigation continues and detectives would like to hear from anyone with information who has not yet come forward."
Tottenham Hotspur fan Tyler had left his home in Feltham at around 9.10pm on Wednesday January 24 and rode his bike along Elmwood Avenue.
At some stage he entered the park, but never returned to his family. He was the first teenager to be violently killed in London this year.
Information can be provided to the investigation team via our Public Portal. You can also call 101 quoting 1197/25Jan. To remain anonymous contact the independent charity Crimestoppers on 0800 555 111.