Kayjon Lubin was killed in Woodman Street last year (credit: Met Police)
Officers found Kayjon Lubin injured in Woodman Street on Friday, 11 December last year following an altercation.
Despite the efforts of emergency services, the teenager was pronounced dead at the scene.
A post-mortem examination established the cause of death as a single stab wound to the chest.
Raymond McGill, 18, of Manwood Street; Azhar Miah, 28, of Silverland Street, Newham; and, Gift Osondu, 18, Constance Street, were all found guilty after a trial at the Old Bailey earlier this year.
McGill and Miah were also convicted of possession of a knife in a public place, while Osondu pleaded guilty to this charge.
McGill and Osondu were found not guilty of the murder or manslaughter.
On Friday, 12 November, Raymond McGill and Gift Osondu were sentenced to two years in prison.
The third man involved, Azhar Miah, was sentenced to 17 months.
Detectives investigating established that Kayjon and his friend Miah had been involved in an altercation with McGill and Osondu in which they were all armed with knives.
The investigating officer, Detective Sergeant Gary Harreman, said: “The Met will do all it can to bring to justice those who carry knives in public and contribute to the violence on the streets of London.
“A 15-year-old died as the result of a single stab wound, demonstrating the deadly consequences of carrying and using a knife.
“My thoughts go out to his family and friends, who have lost someone who had his whole life ahead of him.”
For more on this story, and the latest on our other local and national news, listen to Time 107.5FM
