Gang wars made estate a no-go zone for police – until they found
a supergrass  Area was ridden with guns and crack dealing in
2005 Witness 'broke street laws' in co-operating with police
Stonebridge Estate, Harlesden, London Stonebridge Estate in
Harlesden, London. Photograph: David Levene  Fourteen-year-olds
openly carried guns and the sound of bullets being fired was so
common that few bothered to call 999. This was at the start of
2005, when the Stonebridge estate in Harlesden was the scene of
all-out gang warfare, where the network of concrete blocks and
walkways provided perfect cover for rival drug crews as police
struggled to establish order.  The blood spilled on the north-
west London estate that year included that of Jahmall Moore, the
24-year-old father-of-two whose death was the subject of
supergrass Darren Mathurin's evidence at the Old Bailey over the
last 10 weeks.  But it was not only young men caught up in crack
cocaine and the violent repercussions of disputed territory
whose murders police h