Gangs and guns fuel Chicago’s summer surge of violence

Aired: 7/20/2015 | 0:10:34 | Clip
In Chicago, the number of shooting deaths has climbed in 2015 after falling the last two years. Vonzell Banks was one of the victims -- a 17-year-old church choir drummer, who got caught in the crossfire during a family outing over the July 4th weekend. Special correspondent Chris Bury reports on what’s driving the violence.