Detectives aren't commenting on reports an Italian man with links to the Mafia has been questioned over the slaying of Melbourne gangland lawyer Joe Acquaro.
News Corp Australia reports the Italian visited a local enemy of Mr Acquaro in Barwon Prison a week before the lawyer was gunned down outside his Brunswick East cafe in March.
The Italian reportedly left Australia some days after the execution-style hit.
"The investigation into the death of Joseph Acquaro is ongoing (so) at this stage it would be inappropriate to provide any further comment," a Victoria Police spokesman told AAP on Sunday.
Court documents reveal there'd been a $200,000 contract on Mr Acquaro's head before he was killed but the 54-year-old seemingly ignored warnings by police that his life was in danger.
Mr Acquaro had strong ties within Melbourne's Calabrian community and had been president of Melbourne's Italian Chamber of Commerce and the Reggio Calabria Club.
As a criminal lawyer he'd represented a raft of prominent gangland figures in Victoria.