Police say they arrested an 18 year old man and a 16 year old boy on suspicion of murder last night (Tuesday, 6 May).
The investigation is being lead by detectives from the Homicide & Major Crime Command, based at Putney, under Detective Chief Inspector Noel McHugh.
DCI Noel McHugh said: "I would like to urge anyone who was near Evans Grove, Feltham, between 1500 and 1530hrs on Tuesday, 6 May, to get in touch with police. They may well have seen something which could be of vital importance.
"I would also like to appeal directly to those that have knowledge of this murder to contact police.
"Anyone with information should call the incident room on 020 8785 8099 or call Crimestoppers anonymously on 0800 555 111."
Photo by Nik Black