Metro riders react to shooting at Potomac Avenue station
Metro riders react to shooting at Potomac Avenue station

Metro riders react to shooting at Potomac Avenue station

Metro flags are lowered to half-staff to remember the life of one of their own. 64-year-old Robert Cunningham was killed trying to stop an active shooter at the Potomac Avenue station. FOX 5 reporter Nana-Sentuo Bonsu is outside the station with the latest on Wednesday's horrific tragedy that sent three other people to the hospital.

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