Nelson Alexander Sr. died from his injuries on Saturday after he was shot on October 20 while at a walk-up ATM outside of the Wells Fargo bank in the 2900 block of Annandale Road.
Investigators say the shooting happened around 5:20 a.m. Police say that as Alexander Sr. was standing in front of the ATM he was approached by a man wearing a mask and armed with a small revolver. The man was seen on surveillance video threatening the victim before shooting him.
A bicyclist saw the man on the ground around 6:15 a.m. and called police.
Police describe the suspect as having a slim build wearing a black hooded sweatshirt, dark colored pants, light colored backpack, white shoes with black laces and a black face covering.
Anyone who may recognize the subject from the surveillance footage or may have witnessed the shooting to call 703-246-7800 (option 2) or at 866-411-8477.