Homicide Squad detectives are continuing their investigation into the suspicious death of Kensington woman Sarah Gatt.
The 40-year-old's body was located by police in the bathtub of her Lambeth Street unit about 2.30pm on 3 January, 2018.
Investigators have conducted extensive enquiries since the discovery of Sarah's body and have determined that she died sometime around 19 April, 2017.
Homicide Squad Inspector Andrew Stamper said detectives were still hard at work to get justice for Sarah and her family.
"We believe her body was deliberately concealed at the address and her killer took conscious steps to make people believe she was still alive for some time after her death," he said.
"We've always said that there are people out there who know what happened to Sarah and we continue to appeal to those people to come forward."
Three men and two women were initially questioned by police at the time of discovery of Sarah's body, however no charges have been laid at this stage.
An 52-year-old man of no fixed address was charged last year by the Department of Human Services with Commonwealth offences relating to the alleged collection of Sarah's Centrelink payments.
He will face Melbourne Magistrates' Court on 4 July, 2019.
The investigation into Sarah's death remains ongoing.
Detectives are still keen to speak to anyone with information regarding the investigation, or were provided information that Sarah was still alive after 19 April, 2017.
Anyone with information is urged to call Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au.
