Fair enough; however given the above...
I would be highly interested if there was enough remaining of the late Mister Stack sufficient for an autopsy.
A tox screen that might show drug residues (both legal and/or illegal), and also whether he might have had a brain tumor or some sort of encephalopathy that could cause him to be irrational and energized.
Regarding the drug potential, recall that Adolph Hitler was a speed freak. If at all possible, drug use or some other brain condition should be evaluated and eliminated as possibilities before too much is made of political affiliations.
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No doubt this guy has an internet trail. As I always ask about these nutters when they do themselves in, “What was his Kos avatar?”
Supposedly Stack initiated his manifesto month’s ago. As to whether it represents a detoriating mind, or if he happened to have moments of extreme angst when he contributed more content to it between times of lucidity, I can’t say. But it would be interesting to know more physiological details. You make a very good point.
Did you not read his postings on his blog? He was a communist nut job, he didn’t need drugs or a brain tumor, he was certifiable without them.