What's behind the epidemic of teen killings in Chicago? CNN's Don Lemon and Senior Producer Annika Young went there to find out. They met with drug dealers blamed for much of the violence, listened to the heartbroken parents who have lost sons and daughters in the crossfire, and spoke to the community activists trying to end the bloodshed that has earned one Chicago neighborhood the nickname "Killer Town." In this special report: An unflinching look at a deeply troubling problem mirrored in communities across America, and proposed solutions that will require commitment, time, money and boundless energy.