Detectives investigating the shooting murder of a prominent local lawyer in Sydney's southwest will delve into his list of criminal clients for answers to the killer's identity.
Sixty-five-year-old Vietnamese criminal lawyer Ho Ledinh was shot three times through the back at point-blank range outside Happy Cup at Bankstown City Plaza on Tuesday afternoon in front of horrified witnesses.
Homicide squad commander Detective Superintendent Scott Cook says the investigation is in its early stages but officers will look into Mr Ledinh's clients.
"He was a criminal solicitor, int he sense that that was his business to practice," he told reporters in Sydney on Wednesday.
"He has a lot of clients who are engaged in organised crime and other offences so that is absolutely a line of inquiry in terms of his business."
The attacker was wearing a dark-coloured cap, dark sunglasses, a high-visibility vest, dark-coloured pants and shoes, grey gloves and a raincoat that was either dark green or black.
Det Supt Cook said officers would continue canvassing the area on Wednesday and were searching or a man of Pacific Islander appearance.
He was last seen running down Stuart Lane at Bankstown and remains on the run.
"This was deliberate, this was direct, this was obviously targeted and planned," he said.
"He's a danger to the community.
"He's clearly prepared to use a firearm to kill someone and he needs to be locked up."
Parts of the busy shopping strip remained cordoned off on Wednesday morning.
Police have urged anyone with video footage - including CCTV, shop-front, dash cam or mobile phone related material - to come forward.