Mr Kerinauia was charged with the murder of 20-year-old Declan Laverty, who died in March 2023 while working at a BWS bottle shop in the suburb of Jingili.
Mr Kerinauia has pleaded not guilty to the charge, with his lawyers arguing he acted in self-defence when he stabbed Mr Laverty several times.
On Tuesday, CCTV of the moments Mr Kerinauia stabbed Mr Laverty were played in court, with footage also showing Mr Laverty wielding a small knife during the altercation.
Witnesses who were at the bottle shop at the time of the stabbing gave evidence on Tuesday, including security guard Rifat Mahmud, who attempted to revive Mr Laverty as he lay on the floor bleeding after he was stabbed.
