Toufik, 64, and Salim, 18, were allegedly shot in a brazen daylight shooting while sitting in a parked ute outside a property in Osgood Street, just before 9am on Wednesday, October 20, 2021.
Salim died at the scene, while Toufik died on the way to hospital.
Strike Force Ormerod was formed to investigate the murders and has already charged three men, aged 20, 25 and 18, over their alleged roles.
Police also seized allegedly a car and other items relevant to the investigation at the Granville property, which will undergo forensic examination.
The man was charged with two counts of accessory after the fact to murder, two counts of receive property-theft and participate criminal group contribute criminal.
Anyone with information that may assist investigator,s is urged to contact Crime Stoppers: 1800 333 000 or nsw.crimestoppers.com.au.
