It was being discussed on THR(.us), which seems to be off-line this morning.
As expected, his family are playing the race card, claiming he was being subjected to racial discrimination. As if that's a valid reason for stealing from your employer. But ... he filed NO complaints. Not with the EEOC, not with the police, and not with his union. Two of the people he shot were the union reps who were trying to save his job.
I guess they didn't try hard enough.
One report said he had a pistol permit, so expect the antis to be all over this one. They've been in dire need of a case of a permit holder going postal, so they must be salivating about this incident.