What's Causing Chicago’s Homicide Spike? [CityLab.com]
President Trump threatened Tuesday night to use federal power to “fix the horrible carnage” unfolding in Chicago, referring to the city’s extraordinary recent spike in homicides. The problem is real: 762 people were murdered in Chicago last year, a stunning 58 percent jump in homicides from 2015. So large was the sharp, sudden increase in homicides in one of America’s largest cities that it tangibly raised the entire nation’s homicide rate higher for 2016. But nobody really knows why it’s...