An excellent example of a plausible attack scenario. Having said that, I think what we're all dying to know is what was it, initially, that made Carol so sad?

An excellent example of a plausible attack scenario. Having said that, I think what we're all dying to know is what was it, initially, that made Carol so sad? And, indeed, was it that same sadness which stagnated, fermented, and evolved into the obvious hatred and antisocial behaviors that she exhibits here?