In the middle of the day on 11 April 2014, a hooded gunman ambushed Gakirah Barnes on the streets of Chicago’s South Side. A volley of bullets struck her in the chest, jaw and neck. The 17-year-old died in a hospital bed two hours later.
To many, her death was just another grim statistic from a city that has been struggling with gun violence. Last year, around 3,500 people were shot in Chicago, Illinois, of which 246 were aged 16 or younger; 38 of those children never celebrated another birthday.