Deon Anthony Smith, 47, who had no fixed address, passed away on Dec. 14, nearly two months after the crash, police said.
Officers were initially called to the 4300 block of St. Barnabas Road on Oct. 17 to investigate a reported hit-and-run involving a pedestrian in the area.
According to investigators, a driver struck Smith and fled the scene without stopping. Police are actively working to identify both the driver and the vehicle involved in the incident.
The fatal incident remains under investigation.
Anyone with information has been asked to contact the Collision Analysis and Reconstruction Unit by calling (301) 731-4422.
Want breaking news in the DMV as it happens, or want to contribute? Join the DMV All Incidents Facebook group.
Click here to follow Daily Voice Takoma Park and receive free news updates.