A man has been charged with the murder of underworld figure Mejid Hamzy, who was gunned down outside his southwest Sydney home last year.
Hamzy, 44, was ambushed early in the morning in front of his Condell Park home last October and died at the scene.
Police raided six properties across Greater Sydney on Wednesday morning and arrested two men.
A 38-year-old was arrested at a Liverpool home and charged with murder on Wednesday. He was charged with 16 other offences including driving recklessly during a police pursuit and knowingly dealing with the proceeds of crime.
Another man, who police allege was involved in concealing the BMW used in the shooting, was charged with a raft of drug offences.
The 44-year-old was arrested in Croydon and charged with six offences including manufacturing and supplying a prohibited drug.
State Crime Commander, Acting Assistant Commissioner Darren Bennett, said the arrests came after 10 months of investigations.
"Investigators have reviewed hours of CCTV vision and spoken to numerous witnesses to ensure those responsible are charged and put before the courts," Acting Assistant Commissioner Bennett said.
Hamzy is the brother of jailed Brothers 4 Life gang leader Bassam Hamzy.
Police investigating Hamzy's murder believe the incident is linked to a gang war between the underworld Alameddine and Hamzy families.
A friend of the Alameddine family was assaulted just days before the murder.
Police last week released CCTV footage of cars they believed were used in the murder.
Last month, Hamzy's cousin - Bilal Hamze - was ambushed and executed by gunmen in the heart of Sydney's CBD, in what police feared was an escalation of violence between the families.