The cousin of murdered Sydney student Jamie Gao was against contacting police after his relative disappeared, a court has heard.
Justin Gao said he and his cousin had planned to meet on the afternoon Jamie Gao was allegedly killed by Glen McNamara and Roger Rogerson in a storage shed in 2014.
But when Jamie Gao did not show and could not be found, Justin Gao and a small group of his cousin's friends were "very against" contacting the police.
"I made the decision that if we still couldn't find him the next day, we would call the police and declare him a missing person," he said under questioning from McNamara's barrister Kara Shead.
McNamara and Rogerson have both pleaded not guilty to Mr Gao's murder, but their lawyers have told their NSW Supreme Court trial that each man will accuse the other of shooting him.
They have also pleaded not guilty to a commercial drug supply charge.
Justin Gao returned to the witnesses box on Wednesday after earlier testifying his cousin had told him only two or three days before he went missing that he "would be rich soon".
Ms Shead has told the jury Jamie Gao was a drug dealer and a member of Chinese underworld gang the Triads and that Rogerson was responsible for gunning him down inside the storage shed in Padstow on May 20, 2014.
Yet Rogerson is expected to give evidence during the months-long trial that McNamara had admitted shooting Mr Gao after a struggle inside the storage unit, and that he himself had walked inside unit 803 to see Mr Gao lying dead on the ground.
It is the Crown case that both men agreed to kill Mr Gao, or injure him very seriously, and that the young man's body was dumped at sea after Rogerson and McNamara took 2.78kg of ice that Mr Gao had brought to the Rent A Space facility.
A juror hearing the NSW Supreme Court trial was discharged on Wednesday morning for legal reasons.
The trial continues.
