USPP Unit for the Study of Personality in Politics Back to Index of Criminal Profiles The Possible Motives of Atlanta Day-Trading Mass Murderer Mark O. Barton Aubrey Immelman July 31, 1999 Part I: Personality Profile Atlanta brokerage-office shooter Mark O. Barton appears to fit the profile of individuals described in the psychopathology literature as sadistic borderline personalities, a ...

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