Fox news just said something about this case. They mentioned that the latest speculation is htat it might be job realted because of people saying bad thing about him to the boss. Apparently they all worked for the same company and the gunman has yet to be found to have radical Islamic leanings. Also, in cases like this, the gunman usually tries to flee to shoot again another day if he were a radical. This guy shot himself right after shooting the others.
True, it could be something different than the regular islamic nutjob. But it's knee jerk reaction to assume that Americans get blamed for everything anyway, I mean that seems to be how it works with anyone who doesn't want to blame anyone who might be at fault for anything physically outside of the U.S.
Also, a main theme with these Islamic whacko's seems to be suicide, so for some of us this doesn't appear to be to out of the norm. But thanks for alerting me to the fact it may actually be just a disgruntled worker. ;)