I hope this is the correct forum for this issue, I'd really like to know what people think.
A disgruntled ex-employee of my organization is making trouble, and I'm wondering if we should or even can take any legal action.
The ex-employee has been careful to make no specific threats, but has been sending emails and saying things to various employees that sound ominous and are certainly meant to make people afraid ("It's going to be a long, cold winter around here", etc). The ex-employee has also been lying to financial backers of the organization, saying that the firing was unjust, and generally trying to turn our supporters against us, causing a lot of trouble as we spend an inordinate amount of time dealing with their stirred up feelings instead of getting our work done. The ex-employee is also doing other petty things to waste our time, seems to be actively badmouthing the organization in the community, at least hinting enough so that many people have become angry, and trying to get information from board members and employees. I was stopped on the street by an ex-supporter who yelled at me in public, which I found very distressing. I have also witnessed the ex-employee cruising around the area and glaring at people.
Our board has taken a cautious stance, since the ex-employee seems litigacious, so there is no way to just say to these people "That person was hostile and didn't do their job, and we had to fire them".
But do we have to put up with all of this abuse? The ex-employee has been extremely careful so that none of it looks like evidence of anything, but isn't this some sort of terrorism? It has been nearly a year since the ex-employee was removed. Everyone seems to be on the side of "the Man is wrong for taking out the underdog! We're all victims!" but this person really did some bad things, and has not responded to attempts to work things out in a civil manner!
This is a hire/fire-at-will state anyway!