Aaron Alexis Shooting at Washington Navy Yard 'Not Impulsive Act'

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Aaron Alexis Shooting at Washington Navy Yard 'Not Impulsive Act'

Aaron Alexis Shooting at Washington Navy Yard 'Not Impulsive Act'
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Aaron Alexis Shooting at Washington Navy Yard 'Not Impulsive Act'

by ABC News Videos 3:38 mins

Mental health issues preceded mass homicide.

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