Murder detectives have made an arrest after a father-to-be was stabbed to death in front of his sister at Notting Hill Carnival.
Takayo Nembhard, a rapper who used the moniker TKorStretch, had travelled from Bristol to enjoy the annual event that saw millions attend.
An 18-year-old man handed himself into police on Tuesday and was arrested on suspicion of murder after police released a CCTV image.
Officers still need to trace another man whose image has also been released.
Detective Inspector Laura Semple, Specialist Crime, said: “Do you know who this person is? He was caught on CCTV at the Carnival and we still urgently need to trace him.
“If can you help or have any information – no matter how small - about Takayo’s murder please come forward.”
A post-mortem examination showed the 21-year-old died from a stab wound to the right groin femoral artery.
There were several hundred people in the immediate area surrounding the murder and probably many witnesses.
Four people have also so far been arrested in connection with Takayo’s killing. Last month two men aged 18 and 23 were arrested in Bristol on suspicion of murder.
A 20-year-old woman was also arrested in Islington on suspicion of assisting an offender.
The 18-year-old man and 20-year-old woman were bailed pending further enquiries. The 23-year-old man was released under investigation.
A 17-year-old male was also arrested in Bristol on suspicion of the murder and subsequently bailed pending further enquiries.
Mr Nembhard’s family said: “Takayo’s death has left a painful ache for all who loved him and still love him.
“He was so looking forward to being a dad and would have made a fabulous one as he came from a strong family unit. His son was born on 9 November and although this should have been a happy occasion, it was bittersweet.
“Our family, which includes his girlfriend, continue to struggle with coping without him on a daily basis.
“Our family beg the public to provide any info they may have, albeit videos and or photos that were taken on 29 August in the Ladbroke Grove area.
“Please help us to bring Takayo’s killers to justice and therefore some comfort to us knowing he didn’t die in vain.”
A dedicated page has been set up where witnesses can upload photos and videos of the incident. It is simple to use and can be accessed here.
Information can also be provided by calling the incident room directly on 020 7175 2206 to speak to an officer, by calling 101 or by tweeting @MetCC quoting 7478/29AUG.
Anyone wishing to remain 100 per cent anonymous can contact the independent charity Crimestoppers by calling 0800 555 111 or by visiting www.crimestoppers-uk.org. They never ask for your personal information and they do not track your device.