The PD is genetic. Fallon is still a psychopath. Most psychopaths are not in prison.
All his family knew he was 'different' and he got into lots of trouble as a teen.
His excellent family life saved him from prison. He has lived the life of a psychopath.
I reckon Trump and sons are psychopaths. Disregard for others, ruthless, materialistic, make their own rules, greedy, trophy hunting muderers. No empathy going on there.

I have never said eviroment was not a factor.
Nature loads the gun, nuture pulls the trigger.

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