A prosecutor has told the South Australian Supreme Court that Musa Ali Alzuain was allegedly the man who fired the fatal round that killed Jason De Ieso at his Pooraka workshop in November 2012.
Eight men are accused of murdering Mr De Ieso, who was gunned down in his crash repairs workshop.
Brothers Husain, Mohamed and Musa Alzuain and Daniel Mark Jalleh, Ross William Montgomery, Seywan Moradi, Kyle Lloyd Pryde and Nicholas Sianis are facing murder charges.
Yesterday, prosecutor Jim Pearce KC said a "cascading" series of events between two rival bikie gangs — the Finks and Hells Angels — led to the death of Jason De Ieso, who was not the intended "target".
The prosecution alleged the accused were either members or close associates to the Hells Angels, and Musa Alzuain was the only non-member and "non-patched".
Mr Pearce said, on the prosecution case, Musa Alzuain could be seen on CCTV with the other accused approaching Mr De Ieso's workshop.
"He produced a firearm from under his jumper, raised it, levelled it, and it appears that he discharged it," he said.
"The firearm … is consistent with a sawn-off shotgun."
Mr Pearce said three guns were discharged at the scene, two of them were .22 calibre pistols but "they didn't kill Mr De Ieso".
"There's only one weapon seen on the CCTV footage that could fit the bill for the weapon used to fire the fatal round," he said, referring to the sawn-off shotgun.
The court heard yesterday the men were alleged members or associates of the Hells Angels "North Crew" and were allegedly retaliating against Finks member Charles Bonnici, who had attended Mr De Ieso's workshop moments before the shooting.
Before the alleged murder, the prosecution alleges the group attended the Mr Bonnici's tattoo parlour and "trashed the business" and assaulted staff.
Mr Pearce said, on the prosecution case, Musa Alzuain gave another man a revolver gun — which ballistics examinations found was connected to a projectile found near a pool of blood at the crime scene.
"[The man] had gone to Mawson Lakes, by chance bumped into Musa at a burger bar," he said.
The prosecutor said Musa Alzuain was on his way to get work done in a tattoo parlour when the man agreed to come with him.
"[Musa] produced a gun to [the man], he said words to the effect, 'Hold onto it because people might come in and do as we did'," Mr Pearce said.
The prosecutor said Musa Alzuain asked the man to hold onto the gun and told him if police found it, there would only be a fine.
Mr Pearce said that on that night, two days after the alleged murder, the man took the gun into town with him.
"He tried to get into a nightclub – he couldn't get in – so he went back to his car, that's when police converged – the car was searched and the gun was found," Mr Pearce said.
"Soon after he got home – he had visitors, he had a visit from Musa and Mohammed Alzuain – the first thing they asked him was 'did he talk?'"
The prosecutor said the man asked Musa Alzuain if the gun had been used on the day of "the murder".
"Musa Alzuain responded to the effect, 'It probably wasn't used on the guy', but that he that thought somebody might have fired a shot in the air, or maybe something was left at the place."
Defence lawyers outline their case
After the opening address from the prosecution, defence lawyers for Husain and Mohamed Alzuain outlined their clients' cases.
Winston Terracini KC, for Husain Alzuain, said his client's case fundamentally was that he was "not there", "did not take part in the offence at all", "did not know the deceased man" and "did not assist".
"Just because you're a member of a bikie association doesn't mean that the next step is you're going to effectively gun somebody down for murder," Mr Terracini said.
Grant Algie KC, for Mohammed Alzuain, said his client's case would similarly involve questions about his whereabouts at the time of the shooting.
"Was Mohammed Alzuain one of those nine people at [the Pooraka workshop]?" Mr Algie said.
"That, I'm confident, is what it's going to come down to."
The trial continues.
