Two men have been charged in connection with the murders of three rival drug dealers from the NSW Illawarra region and police say they have identified the other alleged killers.
Darko Janceski, 32, was shot multiple times in the front yard of his home at Berkeley on April 14 last year. He died on his way to hospital.
He and the other two victims were involved in local standover tactics and the distribution of amphetamines and cocaine, police say.
All of the men are of Macedonian background.
"This is the underbelly of the Illawarra region," Homicide Detective Inspector David Laidlaw told AAP.
On Tuesday, police charged a 24-year-old man with Janceski's murder and a 38-year-old man with organising the alleged hit.
Officers from Strike Force Calligan arrested the men after searching homes in the Wollongong suburbs of Blackbutt and Cordeaux Heights.
They will both appear in Wollongong Local Court on Wednesday.
The younger man allegedly rode to Janceski house's on a trail bike and spoke with him before firing three shots into his chest and torso.
Janceski's father came out and confronted the man, who had struck him number of times in the face before fleeing the scene, police said.
During the confrontation he dropped his helmet, sunglasses and the firearm, and the trail bike was found torched nearby.
The older man is the brother of Goran Nikolovski, 35, who police presume is dead after his burned-out car was found a day after he went missing from his Unanderra home on October 31, 2011.
"It is our belief that the two persons who were charged today were of the belief that Mr Janceski murdered Mr Nikolovski," Det Insp David Laidlaw told AAP.
Nikolovski and Saso Ristevski, 37, were associates and had both served previous jail sentences for commercial drug supply.
"During that time their friendship or allegiances waned so much so that they became rivals when they came out," Det Insp Laidlaw said.
A month before Nikolovski's suspected murder, three men confronted Ristevski in the backyard of his parents' home at Lake Heights where he was shot at point blank range to the chest and died.
Police allege all three victims were operating separately from each other and have yet to confirm the allegations any of them were responsible for the other two deaths.
Homicide detectives have identified Nikolovski and Ristevski's killers but have more work ahead of them before laying any charges.
"Drugs have obviously been down this area for quite some time," Det Insp Laidlaw said.
"And it's just a matter of business that they're trying to negate some of their opposition."