Investigators are trying to ascertain a motive for Monday night's incident in which a student of the Camperdown High School and a woman were fatally shot in Bull Bay, St. Andrew.
The deceased have been identified as 15 year old Jevaughn Morris and 55 year old bar operator, Garland Reece, otherwise called Ann.
They were shot on Greenvale Road.
About 8:50 Jevaughn and Ms Reece were among persons inside a yard where her bar is also located.
Gunshots were heard.
Jevaughn and Ms. Reece were later found suffering from bullet wounds.
They died at hospital.