Tensions boiled over at the scene of a fatal shooting in Sydney's south-west as relatives clashed with police and media on Wednesday.
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Hamad Assaad, 29, was getting into his car to leave his Georges Hall home with a 12-year-old relative on Tuesday when he was killed.
Two men with handguns ambushed Mr Assaad, peppering him with bullets before fleeing in a waiting black car.
Mr Assaad's mother emerged from the house to find her son bleeding in the driveway.
Mr Assaad, a well-known figure in Middle Eastern organised crime circles, was on the police radar as a suspect in the shooting of standover man Walid "Wally" Ahmad on April 29.
The Assaad house on Sturt Avenue remained a crime scene on Wednesday, much to the frustration of Mr Assaad's brothers.
They arrived, demanding that officers let them into the house, yelling that the police had already been there for 24 hours.
"Get out of the house, man," one man yelled.
"We've got animals to feed in there."
The men then made their way over to a media pack across the street, screaming and hurling abuse at journalists.
One of the men knocked over a news camera before another tried to charge at a female journalist.
"I'm burying my brother," he yelled.
"My brother is in a grave. He is dead."
Not long after, Homicide Squad detectives returned to the house for a further search while relatives waited on the kerb several metres down the road.
Mr Assaad was identified as a suspect in the brazen execution of Ahmad at Bankstown Central shopping centre.
Police sources believe Mr Assaad may have been acting out of allegiance to a rival family rather than as a gun-for-hire.
"He met his match," one officer said.
The Middle Eastern Organised Crime Squad is trying to quell concerns about retaliation.
Similar action was taken after the death of Mr Ahmad, an influential crime figure in the city's south-west.
"We are always concerned about any potential retaliation from events like this," Homicide Squad Detective Chief Inspector Grant Taylor said on Tuesday.
An obvious line of inquiry for police is whether Mr Assaad was killed in retribution for Mr Ahmad's death.
However, police stressed they were keeping all avenues of inquiry open.
Mr Assaad had escaped a conviction for the murder of Mohamad Alahmad, 37, who was shot six times as he sat in his BMW in the driveway of his home in South Granville in 2007.
It was alleged at the time that Mr Alahmad's ex-wife was in a relationship with crime boss Nasser Kalache but she had started talking to Mr Alahmad about a possible reconciliation.
Mr Assaad was then allegedly under orders to kill Mr Alahmad.
However he was found not guilty in 2010.