Man, I really feel wrong about discussing anyone that has no ability to defend themself.
My personal opinion is that Towd kept pushing the boundaries of simple, societal behavioral standards to the point he could no longer be tolerated. He was combative in nearly every post he ever made, nearly every online comment I ever saw him make, and nearly every personal contact I had with him. As has been stated in a couple of other threads he seemed to want to be disliked.
The only surprise I can express is that it didn't happen much sooner.