"Although all the legal advice at the time was to sue him, I felt that he had already suffered notoriety and I didnt want to mess with him further."
That was a terrible mistake. When you meet psychopathic/sociopathic scum like this, never leave them without landing all the blows you can. The only thing evil need to prosper is good people doing nothing. Getting arrested for no reason and not suing is a major threat to the well being of other good people in the society. Just think what would happen if we start being nice to killers. Police have licence to kill.
For the love of humanity: Know Thy Enemy.
Next time don't stop until the bastards are out of job and inside a cell. If not for you do it for the rest of us.
I hear you. Its not so simple because I have a family and he may have taken further revenge.
Safety does come first. It's not a good move if you are not protected. Social media wasn't as big or efficient at the time. So I can understand. It'll be great if there were more organisations like http://www.ij.org/ to pursue such legal cases. Your safety is much solid when you are with a strong group of well informed well connected people.