The Crown says the man who shot a South Auckland liquor store owner lined him up and pulled the trigger in a calm and deliberate way without flinching.
The trial involving seven men charged in connection to the death of Navtej Singh began in the High Court in Auckland on Wednesday.
Mr Singh, 30, died from a single gunshot wound to his stomach, the day after his Manurewa liquor store was robbed at gunpoint on 7 June 2008.
Anitelea Chan-Kee, Tino Felise, Eti Filoa, Walter McCarthy, Myron Felise and Jason Naseri are charged with murdering Mr Singh and aggravated robbery.
Mefiposeta Chan-Kee is charged with being an accessory to murder.
The Crown says six men are charged with murder but CCTV footage shows that Anitelea Chan-Kee pulled the trigger of the rifle.
Crown prosecutor Kirsten Gray told the court the robbery was initiated by the 22-year-old who had been drinking with friends at a nearby house.
Ms Gray says Mr Singh was behind the counter with his hands up when Anitelea Chan-Kee lined him up and calmly and deliberately shot him in the stomach without flinching.
The court was told Mr Chan-Kee was focused on getting to the till, which he did once Mr Singh slumped to the floor. The robbery took less than a minute, during which $4000 in cash was taken.
Defence lawyer Jonathan Down told the jury of eight women and four men they must be wondering why all seven accused had pleaded not guilty when all had admitted involvement in the robbery.
Mr Down said it was up to the Crown to prove that Mr Chan-Kee had murderous intent when he shot Mr Singh.
Fifty-four witnesses are expected to be called during the trial which has been set down for six weeks.