Wow a pretty damming letter, I would be pissed off as well. I think what these people fear most is technical abilities. In most cases some covert activities usually does the trick. Be careful because this person may have the technicle expertise to cause further damage.
Sending an email is a good idea but I normally don’t send them from my server account. Never know they just might submitt an email spam report to your server. But in any case if this person does not cooperate PM me with the offending link.
greek39/