While some groups have launched committees, others say that change requires action.
Police told residents to steer clear of the area.
The Metro Transit Police Department will be conducting the robbery investigation.
“It was certainly odd to see people being yelled over in what's supposed to be a debate for the highest office in the country."
Police believe the suspects may have left in a vehicle, according to a community alert.
The officer has been charged with second-degree murder and voluntary and involuntary manslaughter.
The problems range from missed phone calls to delayed results.
The Prince George’s County division of the Maryland-National Capital Park Police is investigating the incident.