The Latest Breaking News from Bilal Hamze

Enough evidence links an accused murderer to an underworld drive-by shooting to convict him despite not knowing who else was involved, a court has been told.

An alleged associate of the Alameddine criminal network is accused of roles in planned hits on two high-ranking members of the Hamze family in as many months in Sydney, a court hears.

The NSW Police Minister says the families of those involved in Sydney's unsolved gangland murders are refusing to talk, as detectives throw all their resources into investigating the crimes.

Some experts believe a difference between the underworld of yesteryear and modern gangsters is that they've become much less subtle. Instead of making enemies disappear, crooks are now happy to gun down rivals in front of their family and random bystanders.

Police say an alleged associate of the Alameddine family organised a botched plot to kill Mr Hamze in North Sydney last year, amid an escalating underworld war.