Looks like the suit may be on the grounds that the employer forced employees to be unarmed and vulnerable at the workplace. May be interesting to follow.
http://buzz.blog.ajc.com/2015/05/04...-in-2014-fed-ex-facility-shooting-files-suit/
http://buzz.blog.ajc.com/2015/05/04...-in-2014-fed-ex-facility-shooting-files-suit/