CCTV footage has been released showing the moments before a Sydney tattoo artist was shot dead.
Police hope the images, which show Daniel Vella coming face-to-face with the man who fatally shot him two years ago, will help catch the gunman.
The 40-year-old tattoo artist died after being shot in the shoulder at the Pretty In Ink tattoo parlour in West Ryde.
The footage shows two men, who had their faces disguised by hoods and bandannas, walk into the studio via a rear entrance on the night of March 26, 2011.
One of the men, who was carrying a handgun, shot Mr Vella in the shoulder, before shooting four more times, all of which missed.
Two other parlour employees working that night, and three clients, ran onto Victoria Road and called police.
Mr Vella also ran out of the shop onto Victoria Road, before collapsing onto the footpath.
Detectives from Strike Force Wootten hope the CCTV footage will prompt someone to come forward.
"It's now been more than two years since Daniel Vella was ruthlessly killed in front of a number of people," Detective Inspector Angelo Memmolo said.
"His family and friends still don't know who killed him or why they did it, and they will be unable to find closure until the people responsible for this shocking event are brought to justice.
"If you have any information, no matter how small or insignificant it may seem, please contact us."