Multiple shooting in Kennesaw, Georgia at FedEx location

[Blue_Tires]

71. Identified as 19 y/o Geddy Kramer

A Cobb County police spokesperson said they have an idea as to the gunman's motive. They are interviewing other people who may have been involved and are checking surveillance video for clues.

A co-worker who asked not to be identified because he was Kramer's best friend, said that Kramer's problems at work may have been the straw that broke the camel's back.

"Just how they treated him at work -- the management always complaining for him to do even more than what he was expected and him not getting paid enough," the co-worker said.

Bryanna Cunningham, a close friend of Kramer's, said she knew something was bothering him recently, but she would have never imagined what happened.

"I know he seemed a little depressed and I would talk to him about it but he's not very open. But when I did talked about it he'd, like, cut me off," Cunningham said.

Cunningham described Kramer as "really funny."

"If I was upset, he was very kind and I just don't know how this could have happened," Cunningham said.

Aiken described Kramer as "quiet."

"We would joke around sometimes. I mean, I never thought would do something like this," Aiken said.

Another co-worker, Collin Harrison, said that Kramer seemed upset on Friday and then didn't show up on Saturday. Harrison said that workers aren't required to wear uniforms in that part of the facility.