A TEENAGER who shot a youth worker through the heart over the theft of his gold chain was jailed for life yesterday.

Furious Junior Glasgow, 17, fired at Nathan Foster, 18, six times.

Glasgow thought Nathan was part of a group who had snatched a £2,000 gold chain from his neck hours earlier.

Witnesses said Glasgow rode up on a moped and shouted Someone snaked me before firing at a group sitting on a wall, including Nathan.

He shot the dad-of-one in the chest and five times in the back and shoulder as he tried to flee, the Old Bailey heard.

The pair knew each other through neighbourhood workshops in Brixton, South London, designed to keep kids away from gangs.

Judge Peter Rook, sentencing Glasgow who denied murder, told him: It was a cold-*lo**ed execution