Farhad​ Qaumi and Mumtaz​ Qaumi on trial for murder of Joseph Antoun

"I've got a package for Joe," said the man on the doorstep.

With that, Joseph Antoun​ went to his front door and was shot four times through a wire screen on the night of December 16, 2013.

CCTV footage shows Brothers For Life leader Farhad Qaumi (left) and Pasquale Barbaro at Star City casino in early January, 2014. Photo: Supplied

Blacktown Brothers For Life gang leader Farhad​ Qaumi, and second-in-charge Mumtaz​ Qaumi, are on trial for the murder of Mr Antoun.

They are accused of accepting a contract to kill Mr Antoun at his Strathfield family home in exchange for money related to the purchase of a kebab shop. They have pleaded not guilty.

Blacktown Brothers For Life gang leader Farhad​ Qaumi (left) is on trial for the murder of Joseph Antoun. Photo: Supplied

A CCTV camera outside Mr Antoun's home captured the shooting, and shows a man in a hooded jumper running up his driveway, waiting at the door, and running away after firing shots.

Pasquale Barbaro​ – who was shot dead in Earlwood on Monday – was recorded in a phone conversation with Farhad Qaumi later in December 2013 discussing getting a call from someone called "Mikey" in Auburn, who asked after Qaumi.

"So I went [to Auburn] just to see who it is just in case he's got a hot sister, or whatever," Barbaro​ was heard to say in the phone call intercepted by police and played to the NSW Supreme Court on Tuesday.

Qaumi later replied: "I'll talk to ya when I see ya brother ... don't worry about it. The only Mikey that I heard of cuz is the one that ... I heard on the news and that, that he got shot.

Pasquale Barbaro, 35, was shot dead in Earlwood in Sydney's west. Photo: Instagram

"I just seen it on the news. I don't even know that bloke either, you know what I mean."

Barbaro​ was then seen at Star Casino in early January with Farhad Qaumi​.

The Qaumi trial, which is being heard by a judge alone, was told police approached Barbaro to make a statement about the Antoun case, but he refused.

The gunman and the getaway driver, neither of whom can be identified, have pleaded guilty to their roles in the shooting.

They were members of the Brothers For Life gang, Crown prosecutor Ken McKay told the court.

"Within that group, it was the understanding of the members ... that the orders which are given by the leadership group are to be obeyed. 

"There can be consequences if they are not obeyed."

The trial continues before Justice Peter Hamill.