Justin Mohn, a 32-year-old Pennsylvania man, is in police custody after allegedly murdering and decapitating his father, claiming the latter was a “federal employee” and a “traitor.” Before his arrest, Mohn posted a 14-minute video to YouTube in which he displayed his father’s severed head, proclaiming: "This is the head of Mike Mohn, a federal

I don’t have a background in psychology either, but the prefix hyper- in medical contexts usually means something is abnormally and dangerously excessive in size, amount, etc. Yet from your quote there’s no reason to conclude the on-average increased amydagla is necessarily abnormally increased. It isn’t, it’s just bigger, it’s not automatically pathological.
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