Jurors do not need to be convinced an alleged killer fired the gun in an underworld drive-by shooting to convict him of murder, prosecutors say.

Hamze crime family boss Bilal Hamze was shot multiple times after walking out of a Japanese restaurant in Sydney's city centre in June 2021 in an apparent retaliation for earlier gang violence.

He suffered wounds to his abdomen, hip and elbow, and later died in hospital.

In her closing address in the NSW Supreme Court murder trial of Samuel John Rokomaqisa, crown prosecutor Kate Ratcliffe conceded unknown men were involved in the ambush.

But she said only Rokomaqisa's whereabouts were relevant to decide the 35-year-old's guilt.

"The accused is guilty whether he was the driver or the shooter," Ms Ratcliffe told jurors on Thursday.

"This trial

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