Sodiq Adeojo convicted of murdering 17 year old Sylvester Akapalara in Peckham, south-east London
A gang member was sentenced to life imprisonment with a minimum of 30 years for the shooting death of a promising athlete.
Akapalara Sylvester, 17, was found dead on the stairs of an apartment building in Peckham, south-east London, in December 2010.
had been chased by a gang armed with a gun and knives before being shot in the neck and chest, the Old Bailey heard.
Sodiq Adeojo, 20, from Peckham, was sentenced in December last year murder, two counts of attempted murder and weapons at their disposal.
sentenced him to a minimum sentence of 30 years, Judge Timothy Pontius said Akapalara was "the wrong place at wrong time."
Akapalara said it was a "promising young athlete of considerable ability."
Adeojo was also given some competitors 22 years in prison for attempted murder and 14 years for the gun.
three other teenagers were acquitted and the fifth face a new trial.
Adeojo The court heard he was a gang member, they were looking for rival gang members, when they met Akapalara and friends.
The judge condemned the "senseless violence and terrible" of gang culture.
He said: "This is the culture in parts of London that young men and boys only, for whatever reason, are attracted and stimulated by the idea of ??belonging to a group not recognize the limits of acceptable human behavior decent. "
"This second group came prepared for the task at hand. One of them had a gun, the others had knives."
Andrew Hall, QC, for Adeojo, said: "It was at college is not a hardened criminal young.".