For years, the murder rate in Chicago had been decreasing but this year has been different. Through the end of July, the number of murders in the United States' third largest city was more than 25 per cent higher than it was during that same time period in 2011. After a stray bullet killed seven-year-old Heaven Sutton outside her home, Chicago's mayor pointed to the city's gangs as the root of the problem. But community organisers say the rise in murders is a result of failed urban policies. They argue that a systemic change is needed and not just a police crackdown.