I'm not going to run in and condemn this suit, not just yet. The deep pocket always gets sued, it's a tradition.
The family has had a great loss, just the financial aspect alone is pretty big. Loss of main provider, next 25 years, loss of spousal pension benefits, health insurance benefits, they've taken a hit.
What has been unstated in any article I've seen about this event, is if anyone in the workplace had initiated a discussion with management about the male shooter. Seems there had been discussions in the office about Islam, Israel, terrorism, such as that, but no information about whether or not the co-workers considered him to be opinionated enough to cause concern, yet these discussions were often enough to be remarked upon after the shooting.
It took days for this to be reported as terrorism, and not 'workplace violence'. Was there similar inaction or cover-up by staff at the workplace prior to the event? We'll find out as the suit progresses. I guarantee you that the County has a protocol in their manuals about handling employee concerns.