Police searched a property at Blaxlands Ridge in relation to missing man Raphael Joseph, who was last seen wearing a grey T-shirt, khaki pants and dark shoes and getting into the back seat of a car in Dartbrook Road at Auburn four years ago.
POLICE are hoping that the $1 million reward being offered for information into the disappearance and suspected murder of Raphael Joseph may motivate those with information to speak up.
Raphael Joseph, 37, was last seen getting into the back seat of a silver Holden Commodore on Dartbrook Road, Auburn, about 11.20pm on Thursday, March 20, 2014.
He was reported missing by his family two days later, and it was quickly established he likely met with foul play.
Strike Force Halfbeak was formed to investigate the circumstances surrounding his disappearance and suspected murder.
Homicide Squad Commander, Detective Superintendent Scott Cook, welcomed the reward, which he believes may motivate those with information to speak with police.
"Strike Force Halfbeak detectives have been meticulously working through every aspect of Mr Joseph's life in order to piece together the circumstances surrounding his death," Det Supt Cook said.
"These inquiries, and information from the community, has given us a good idea of what happened after he got into the silver Commodore that night, but the puzzle is still missing a few pieces.
"We know Mr Joseph left his Chiswick apartment in the early evening and dropped-in at the home of an associate at Pyrmont, before having dinner with friends at a restaurant in the casino.
"During dinner, he received a message on his encrypted Blackberry and shortly after, left the casino to head to a meeting with known associates.
"Mr Joseph, who was being driven by a friend in his Mercedes Benz, stopped briefly at home before making his way to Dartbrook Road, Auburn, where he entered the back seat of the Commodore.
"We now know Mr Joseph was taken to a nearby home, where he was murdered."
Earlier this year, strike force detectives located and seized three vehicles - a silver Holden Commodore and two Toyota Hiace vans - they believe were used by those responsible for Mr Joseph's disappearance.
Further inquiries led Strike Force Halfbeak investigators to search a rural property at Blaxlands Ridge, where they seized a number of items.
Investigators also identified the home in which they believe Mr Joseph was murdered, which has undergone extensive forensic and scientific analysis.