BUNDABERG police have released the name of a 64-year-old Bucca man who was found dead in Mullett Creek by two fishermen on January 29.
Detective Senior Sergeant Tanya Walters of the Criminal Investigation Branch said investigations into the death of Bernard Hayward, also known as Bernard Gannon, were ongoing.
Ian Rankine, who knew the deceased, said Bernard Hayward was a helpful man who always looked out for others.
"Bernie was always helping people, especially backpackers who had broken down cars," he said.
"He was quite an accomplished mechanic."
Det Sen Sgt Walters said Mr Hayward was last seen leaving his residence at 9.30am on January 26 and again at 7.30pm at Norval Park by a female associate.
"The female associate saw Mr Hayward leaving in his white utility with his two pet dogs in the front seat," Det Snr Sgt Walters said.
She said that on January 27, a jack russell dog was handed to a veterinary surgeon in Bundaberg who was told that the dog had been found on Littabella Rd in Yandaran, near Pops Lane.
"Subsequent inquiries by the veterinary surgery identified that this dog belonged to Mr Hayward," Det Sen Sgt Walters said.
As a result police conducted ground and air searches.
"They attended the end of Tindels Rd, Bucca. This location is approximately three kilometres upstream from where Mr Hayward was located in Mullett Creek," Det Snr Sgt Walters said.
"At this location at the foot of the cliff, police located car parts similar to the vehicle driven by Mr Hayward."
Police also saw oil emanating from under the water.
Det Snr Sgt Walters said that on January 31, investigators and water police searched the area near the three-metre cliff and found a vehicle submerged under the water.
"At this stage, the vehicle has not been identified as belonging to Mr Hayward but it is more than likely that it is his vehicle," she said.
Police are continuing investigations into the death and are interested in speaking with anyone who may have seen or spoken to Mr Hayward between the hours of 10am and 7.30pm on Australia Day, January 26.
Police are also interested in speaking to anyone who may have found Mr Hayward's other dog, a kelpie.
Det Snr Sgt Walter said Mr Hayward did not have family in the area and said he had been living at his residence for at least eight years.