Ajmol Alom's mother rushed from the family home and watched helplessly as her son bled to death on Spey Street in Poplar. Prosecutor, Mark Dennis said:
A small group of male teenagers were casually chatting together near a row of shops on Spey Street in Poplar.
They had spent most of the evening playing football and were making their way home and simply enjoying each other's company.
None of them had a care in the world that evening - all that was about to change in a way of sudden and gratuitous violence which was inflicted on them which left one of the group with a knife wound and another dying in the street.
The four males appeared to be hooded and each had tried to mask the lower part of the face with a bandana. They were there with hostile intent and obviously had a target.
An aspiring doctor was stabbed to death trying to protect his best friend from a masked gang in east London. Snaresbrook Crown Court heard how 16-year-old Ajmol Alom collapsed yards from his home after being attacked by a gang.
The teenager had a bright future and was hoping to study medicine at Oxbridge. He was killed just days before receiving eight A's and three B's in his GCSE results last August.
Aminur Nazir Khan, Muhammod Malik, Mashudur Rahman and Ali Choudhury are charged with the murder of 16-year-old Alom who died on August 12 last year. They all deny the charges.