The victim has been identified in Wednesday's shooting at Newcastle Apartments in East Ridge.
Dequan Fuqua, 20, was shot in the forearm, the shoulder and was grazed on his chest.
Three apartments other than Fuqua's are known to have been struck by bullets, one of them vacant and unoccupied, the others were occupied at the time of the incident with bullets penetrating exterior walls and traveling into the interior of the apartment.
Two vehicles were struck by bullets, both belonging to either Fuqua or his girlfriend.
The investigation is ongoing.