Police have discovered human remains they believe to be linked to the death of William Algar who was found dead in his house in Barnes 10 days ago.
On Saturday, forensics officers carried out a search in the area of Edgar Road, close to Hounslow Heath, where human remains were found. The identity of the remains have not been confirmed.
Detective Inspector William White, from Specialist Crime, said: “This is a significant development in our investigation to establish what happened to Blaise.
“The location of our search is in a residential area, close to Hounslow Heath.
“Were you walking on the heath? Did you see anyone carrying anything? I am urging anyone who saw anybody acting suspiciously to come forward and speak with us.
“I am also still keen to hear from anyone who had contact with Blaise during November and December last year. He was known to visit the local shops in the Castlenau area – did you notice him or speak to him?
“Our thoughts remain with his family and friends, and we will continue to provide them with the support they need.”
A scene remains in place and officers are expected to be in the area for several days.
Superintendent Richard Smith, of the South West Command Unit, said: “The murder of Mr Algar has caused considerable concern for local people in Barnes and across the borough of Richmond upon Thames.
“Local officers have been working closely with detectives from the Met’s Specialist Crime Command and the local authority to progress this investigation as quickly as possible. My thoughts remain with Mr Algar’s family and friends as they come to terms with the terrible events of the last few weeks.”
Mr Algar was discovered in his home in Nowell Road, Barnes, after concerns had been raised about the welfare of an occupant.
A post-mortem carried out at Kingston Mortuary on January 5 and gave the cause of death as a stab wound to the chest.
Anyone with information that could assist police with their enquiries is asked to contact the incident room on 020 8721 4054, or stay anonymous by contacting the charity Crimestoppers on 0800 555 111.
A 17-year-old male has been charged with murder.