Two brothers and their cousin were killed at a house situated at 69 Chisholm Avenue in Kingston Saturday morning.
The victims have been identified as masons, 27 year-old Alex Ricketts and 30 year old Nava Ricketts, otherwise called Fatta.
The other victim is 48 year-old deliveryman, Ricardo Henry, otherwise called Rasta.
It's reported that about 1:15 a.m., gunmen entered the premises and ordered the victims to go to a different house in the yard.
The assailants then shot the men before escaping.
The police were called and the Ricketts brothers and their cousin were pronounced dead at hospital.
Senior Superintendent Kirk Ricketts, the Commanding Officer for the St Andrew South Police, said the gunmen were dressed in clothing imitating the police.
Investigators are probing whether the shooting is linked to a missing firearm.