Just before 6 a.m., police said Geddy Kramer of Acworth drove up to a security gate, stormed out and shot the security officer. Authorities say Kramer then walked into the building and proceeded to shoot five more people.
About three hours later, Kramer was found dead of a self-inflicted gunshot wound.
These tapes are very difficult to listen to.
You can hear the chaos and panic of people, and workers ushering employees out of the building to safety.
Read More: http://on.11alive.com/1jduWb0
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.