Terrell Davis was stabbed to death in Ramilles Close in Brixton Hill, south London, just before 6pm on 22 November 2020.
The drill rapper, popularity known as TM1way was taking shopping to his grandmother when he bumped into an old friend and was stabbed.
Paramedics and an air ambulance crew tried to save the 27-year-old but he was pronounced dead at the scene.
Detectives investigating the killing charged Tyrece Fuller, 21, of Tavy Close, Lambeth, with murder.
Terrell attended Ambler Primary School in Finsbury Park and then Stoke Newington Arts and Media College.
He was the brother of the US rapper 21 Savage, who paid tribute by posting a picture of the pair together on Instagram.
The performer wrote: “Can’t believe somebody took you baby bro I know I took my anger out on you I wish I could take that shit back.”
21 Savage has been based in the US since he was seven, but the Grammy-nominated artist – whose real name is She’yaa Bin Abraham-Joseph – was born in Newham, east London.