Drug dealer guilty of murdering teen in carpark

A Sydney drug dealer has been found guilty of murdering a teenager who was shot dead as he sat in a parked car almost five years ago.

Joseph Gatt, 27, had pleaded not guilty to murdering 18-year-old Bassil Hijazi at Bexley in July 2013, maintaining his friend George Borg pulled the trigger.

But the New South Wales Supreme Court jury rejected that defence and found him guilty today.

Borg has already been sentenced after pleading guilty to murder.

The prosecution had alleged Gatt went to the Bexley car park with Borg to find Mr Hijazi.

This followed a physical confrontation involving the teenager earlier that year and a shooting Gatt attributed to Mr Hijazi's associate.

Both Gatt and Borg were armed but Gatt was the only one to pull the trigger, the prosecution said.

However, Gatt testified he and Borg were in the area to deal cannabis when they approached the parked vehicle and "a firearm was produced against us".

Gatt said Borg then produced a firearm and shot at the car.

The case has been adjourned to June 13 for a sentence hearing.