Police are still investigating the death of Mr Gajic, known to neighbours as Michael and Mick, after finding suggestions of foul play in the Mansfield Place unit.

Authorities are conducting an autopsy on Friday, and are waiting on the results before formally identifying the deceased.

Mr Gajic, 71, is thought to have had family, with at least four children in 1986, according to historical news reports of unrelated court proceedings.

At the time, he had been married for 20 years, and had previously been employed as a butcher.

But Mr Gajic suffered injuries during his work, which left him unemployed and unable to continue in the trade, the reports say.

His body was found in the block of units on New Year's Day, with residents reporting terrible screams as the grim discovery was made.

Neighbours say they strongly believe he was dealing cannabis from the small block of flats, named Connorville Gardens.

One neighbour, Daniel Alarcon, said he knew of two previous attacks on Mr Gajic's unit.

He claimed to know of an incident about a year ago, in which two men broke into the flat late at night, but were chased out by an armed Mr Gajic.

Mr Alarcon said a brick was also thrown through the window of the same unit about three to four years ago.

Police have not commented on whether the victim is known to them, or whether they have attended previous incidents at the address.

They are hoping to release further information about the circumstances of the death following the autopsy's completion on Friday.