"Man stabbed to death on Oxford Street"

The headlines flew across phone, computer and television screens, the media's frenzy spun outsiders into a whirlwind of chattering and sent parents into a spiral of worry as their sons and daughters insisted on leaving to seek out the reduced labels. Another killing in the capital and another youth fallen victim to knife crime, the only industry in London that isn't feeling the pressures of the economic climate; rumours of motives and knife men circulated twitter and facebook, everyone seemed to know someone who knew someone who knew someone. Regardless of how close to home it all feels, none of the youth expressed any shock; In a video taken at the scene the crowds gathered around the life that was slipping through the paramedics' hands showed a mild curiosity, but not long after did the Londoners continue about their business in giggles and indifference. Why has it come to the point to which those living in this metropolis aren't shaken by events like these, has it become a norm within the M25?