It must have been a strange sight: two grey-haired men emerging from a south-west Sydney storage shed, lugging a silver surfboard bag.
In broad daylight last Tuesday, the pair loaded the bag into the boot of their white Ford Falcon before returning inside, re-emerging with several office chairs which they packed on top of the bag.
The two men, police allege, were notorious ex-detective Roger Rogerson, and a former Kings Cross detective Glen McNamara - and they had just allegedly committed the brazen murder of Sydney drug dealer Jamie Gao.
His bloodied body, it's alleged, had been zipped inside the silver surfboard bag.
It's understood a CCTV camera perched high above the south-west Sydney storage facility did not capture the two gunshot rounds police allege the men fired into Gao's chest as they prepared to exchange three kilograms of the drug ice for about $3 million - but it did record the trio entering the facility just after 1.30pm. And only two of them leaving.
Some 24 hours later, police allege, Mr Rogerson and Mr McNamara returned to the Padstow storage facility to clean up their deeds, re-entering unit 803 of the Rent A Space facility on Davies Road.
They allegedly spent 40 minutes inside, cleaning up Mr Gao's blood and any traces of the crime, and returning the office chairs they had removed the day before.
Police allege that by this stage, the pair had "disposed" of Mr Gao's body. It was found floating in a tarpaulin off Cronulla.
The events which could see the pair spend the rest of their lives in jail had begun, police claim, in clandestine fashion.
Mr McNamara, 55, phoned Mr Gao from a phone booth in Cronulla last Tuesday, allegedly arranging to meet the student outside an industrial block in Padstow.
Security cameras outside Mick's Meat on Arab Road, Padstow, reveal Mr Gao arrived at the appointed place at about 1.30pm, alighting from his own vehicle and getting into the Ford Falcon carrying a bag allegedly carrying the drugs he had agreed to sell the pair.
Just minutes later, security cameras pick up the same Ford Falcon, pulling into the driveway at the nearby storage facility.
The three men allegedly walk into unit 803, and the images are the last to capture the University of Technology student alive.
By 2.30pm, police allege, the ex-police officers had shot Mr Gao, an only child, twice. And the cover-up of their crime began in earnest.
It's understood that after Mr Gao's body was put into the boot of the car, the CCTV captures the men placing folded office chairs over the top of it in a bid to conceal their cargo.
As the pair allegedly dumped his body in the ocean, worried friends and family reported Mr Gao missing. A week later his two alleged killers had been charged.
Neither Mr McNamara nor Mr Rogerson have entered pleas to their charges.