Tu Luong, 35, suffered numerous injuries and was rushed to Liverpool Hospital, but he died a short time later.
Homicide squad detectives today searched five premises in Casula, Liverpool, Fairfield East and Smithfield.
Five men, aged between 32 and 38, were arrested following the raids and remain in police custody.
The sixth man, 36, was arrested in the Canberra suburb of Phillip and has been extradited to NSW.
He appeared briefly in the ACT Magistrates Court this afternoon and will appear in the Queanbeyan Local Court tomorrow.
A police statement said all six are expected to be charged with murder.
At the time, police said the incident seemed to be pre-arranged and the men involved had been involved in illegal activity.
They said the attack happened after two cars pulled up in the street, Mr Luong got out of one of the cars and was allegedly set upon by at least four men and attacked with a knife and a metal pole.
Drug debts ‘motivation for murder’
Acting Commander of the NSW Police Homicide Squad Grant Taylor said today’s operation was the result of six months of hard work.
He said the six men arrested were still assisting police at Liverpool and Fairfield police stations and in Canberra and it was expected they would be charged with murder today and appear in court this afternoon or tomorrow.
“Police will be alleging that Tu Luong was lured to a location in Fairfield where he was then abducted against his will and was being conveyed to a second location when he was set upon on the side of the road in Fairfield,” Acting Commander Taylor said.
“The vehicle he was in pulled over and the second vehicle had pulled over as well, a fight took place and subsequently he was killed.
“We will be alleging that these individuals are involved in the sale and supply of heroin and also methamphetamines.”