Detectives are still unable to explain the murder of taxi driver Andrew Mordowicz, who was lured to his death in Adelaide's northeast 23 years ago.
He was called to a quiet cul-de-sac in the early hours of the morning, but he couldn't find the street number the booking was made for -- number 79 didn't exist.
Mr Mordowicz settled for 78 when he walked up to knock on the door at 4.30am. No answer.
As he walked back to his taxi on the driveway, the 43-year-old was repeatedly shot.
He died shortly after in hospital.
With no firm suspect ever being identified, the crime has perplexed SA detectives ever since.
Particularly confusing to police, is that Mr Mordowicz was found still with cash in his pocket and his coin dispenser unlocked in the taxi, making the attempted robbery angle unclear.
"It appears to be a robbery gone wrong," Detective Sergeant Anne Schaefer said.
"But we keep an open mind and we can't rule out the possibility that Andrew was deliberately targeted."
No witnesses have ever come forward to report seeing a suspect, leading police to believe whoever was responsible fled into parklands behind the property.
Compounding detectives' frustration, no murder weapon has ever been recovered, but police remain hopeful, saying just one piece of information can be all it takes to progress a case.
Police are urging anyone with information to call Crime Stoppers on 1800 333 000 or report online at www.crimestopperssa.com.au.
© AAP 2019