Indeed writing carelessly with disregard for formatting, grammar and punctuation, is something only for the highly powerful and rich, or for the extremely dyslexic and dumb.

Makes one wonder, even if this guy was rich, was he maybe very dumb? And/or dyslexic?

He must at the very least have been a sociopath to not care about all the lives he ruwend.

But a sociopath is very capable of looking sincere and pretending to not know about the hurt done to others. To me it seems more like he was a narcissist.