The deadliest shooting in American history—the 2017 Las Vegas attack that killed sixty and wounded more than eight hundred—was carried out by a millionaire who believed he’d been treated poorly by casino staff. The deadliest school massacre in American history wasn’t Sandy Hook, it was a bombing in 1927 that leveled a rural Michigan school, killing thirty-eight children and six adults. The culprit was a local farmer, upset that he lost an election for school board treasurer. What they had in common, in Key’s view, was aggrieved narcissism, a total inability to put personal affronts into
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