An active-duty Navy sailor, identified as Gabriel Antonio Romero, fatally shot dual civilians and bleeding a third before murdering himself. Romero, who was from Texas, was reserved to a submarine USS Columbia, that was docked during a shipyard for slight maintenance, per a Navy.
Article source: https://www.huffpost.com/entry/victims-pearl-harbor-hawaii-shooting_n_5dead7bbe4b0d50f32b358ed