The shooting happened around 10 p.m. inside an apartment on Audubon Avenue, near US 1.
Police said one of the victims, a man, died at the hospital. Two others were injured, and they are being treated for injuries that were not life-threatening, Washington's Top News reported.
Fairfax County police conducted what spokeswoman Lucy Caldwell described as an “exhaustive search” for a suspect Wednesday night as police followed up leads.