Denard Orlando Hartwell, 44, was shot and killed in Southeast Washington, D.C., in the early hours of August 18, 2018. Police were called to the 4400 block of Livingston Road, Southeast, after reports of gunfire; a short time later a hospital notified officers that a male victim with a gunshot wound had arrived. That victim was identified as Hartwell, who was pronounced dead after life-saving efforts failed.

Investigators later concluded the shooting occurred during a robbery targeting marijuana. Surveillance video showed a car enter a parking lot and two individuals exit and approach the location; the footage captured them running back to the vehicle after a struggle. Hartwell was unarmed. A 24-year-old man from Glenarden, Maryland, was arrested and charged in November 2018 as the alleged driver for the group that targeted Hartwell; his attorney said he did not know his companions were armed.

What information do readers in the area have about the parking lot, the vehicle, or anyone connected to Hartwell that could help this investigation?