Atlanta Shooting Suspect Captured After Killing CDC Employee and Injuring Four Others.

A CDC employee, Amy St. Pierre, was killed in a shooting at a medical building in Midtown Atlanta. Four other women were injured, three of whom remain in critical condition. The victims were rushed to Grady Memorial Hospital, which declared a "mass casualty event" and treated the wounded. St. Pierre was a mother of two young children. The hospital increased security and briefly suspended visitor access. The suspect's location is unknown.