A year after the murder of a 16-year-old Stratford boy, detectives announced a reward of up to �20,000 for information leading to the identification, arrest and prosecution of the killers of Samuel Adelagun and the attempted murder of his 15-year-old friend.

It was on October 23 at around 3.20am Police were called to Chesterton Road, Plaistow, following reports that two teenagers had been shot.

The shooting happened on a patch of parkland at the junction of Chesterton Road and Upper Road.

Samuel was pronounced dead at the scene. A post mortem examination gave cause of death as a gunshot wound to the chest.

A 15-year-old boy found suffering from a gunshot wound to the abdomen was taken to hospital and went on to make a full recovery.

It is believed that four friends aged 15 and 16 years-old, were walking along Upper Road when two gunmen appeared behind them and fired about four shots. Samuel and his pal were both hit. The youths managed to disperse and re-group outside a house in Chesterton Road where they sought help. The suspects were said to be dressed in black with balaclavas.

Despite an intensive investigation by Trident, the special black-on-black crime unit , no-one has been charged. Four men aged 20, 22, 22 and 23 were arrested on 11 November 2010 but later released no further action.

Detective Sergeant Gary Royal said Trident remains committed to investigating the murder and it is hoped that the offer of a reward will encourage members of the public to come forward and provide information

Samuel’s mother, Ola Shokumbi said: “The death of my son has greatly affected myself and my family. He is missed very much every day and his death has left a significant hole in our lives. We hope that eventually those responsible will be brought to justice.”

Anyone with information should contact the incident room at West Hendon on 020 8733 4211 or Crimestoppers anonymously on 0800 555 111.