A man whose dismembered remains were found in a house in Barnes has been formally identified by police as “brilliant” jazz trumpeter William Algar.

The remains of Algar, known to friends and family as Blaise, were found at a house in Nowell Road, on January 3. His head and torso were recovered but his arms and legs had been removed and have not yet been found.

The search of the property came amid concerns that had been raised about the welfare of the occupant – weeks after he was first reported missing.

A post-mortem examination carried out at Kingston Mortuary on January 5 gave the cause of death as a stab wound to the chest.

On Tuesday a 17-year-old from Kensington and Chelsea appeared at the Old Bailey charged with murder. He will next appear before court on February 16.

Detective Inspector William White from the Specialist Crime Command said: “Blaise’s family are completely devastated by the loss of their son and brother and we continue to investigate the circumstances surrounding his murder.

“I am now turning to the public and anyone who knew Blaise to tell me what they may have seen in the time leading up to his death.

“I am specifically interested in hearing from anyone who had contact with him during November and December. Blaise was known to visit the local shops in the Castlenau area – did you notice him or speak to him?

“I am also keen to hear from any residents in and around Nowell Road who have yet to speak to us – in the months prior to Christmas did you notice people you did not recognise coming and going from Blaise’s house during the day and night?

“Any information you might have could assist us in establishing Blaise’s movements in the time leading up to his death.”

Blaise’s family said in a tribute: “We are utterly horrified to lose our son, brother, brother-in-law, uncle, friend in such tragic circumstances.

“William Algar, also known as Blaise, was an incredibly talented musician and a gentle man. He was a brilliant jazz trumpeter and his playing brought joy to so many people.

“He was also a very vulnerable man. We hope that someone, anyone, can provide vital information to ensure those responsible for his death are brought to justice as swiftly as possible.

“Please contact the police if you can help, even if it feels like a small piece of information it might prove crucial to the investigation.”

Anyone with information that could assist police with their enquiries is asked to contact the incident room on 020 8721 4054.

You can also contact the independent charity Crimestoppers 100% anonymously on 0800 555 111.