Investigators said the suspect had a brief conversation and then pulled out a gun and fired multiple times at the two victims.
He took off in a dark-colored SUV that police also provided a photo of Tuesday.
The suspect is facing charges of assault with intent to kill.
The shooting Tuesday happened one week after an early morning robbery in Southeast where police say the suspects claimed to be FBI agents. No arrests have been made yet in that case either.
Anyone who can identify this individual or vehicle or who has knowledge of this incident should take no action but call police at (202) 727-9099 or text your tip to the Department’s TEXT TIP LINE at 50411. There’s a reward of up to $10,000.