Next we hear that one of the shooters looked and sounded like someone the victims recognized. They were workers for the county health department at a holiday party, and some said one of them he resembled a coworker who had been there earlier, had some kind of dispute and left before the group photo. So now maybe we're thinking workplace violence — a disgruntled employee, like in the 2010 mass shooting in a Connecticut warehouse, or more recently the killings of a television reporter and cameraman in Virginia, though without the evident hunger for media exposure. Then again, there is the case of Nidal Hassan and the mass shooting at Ft. Hood, Texas, which sparked hot debates about terrorism vs. workplace violence.