Metropolitan Police Department detectives made an arrest that occurred on Feb. 1, inside of the Potomac Avenue Metro Station.
According to a press release, at about 9:19 am, officers responded to the report of gunshots at the Potomac Avenue Metro Station. Officers arrived and discovered two male shooting victims.
The suspect brandished a handgun and engaged in an altercation with a male victim on a Metrobus. After getting off the bus, the suspect fired his weapon at the victim. The victim was taken from the scene and brought to a nearby hospital.
The suspect then entered the Potomac Avenue Metro Station and fired the handgun again striking the second victim.
A WMATA employee made an effort to stop the suspect and intervene, but was fatally shot by the suspect.
The suspect was disarmed by passengers on the Metro rail car.
The decedent has been identified as 64-year-old Robert Cunningham.
On Feb. 1, 31-year-old Isaiah Trotman was arrested and charged with first-degree murder while armed, kidnapping while armed and assault with a dangerous weapon.
