A Brisbane father whose body was found in a sewage tank had recently confronted someone for stealing his belongings while he was in jail.
Maintenance workers found the remains of Jason Guise at a Wynnum sewage pumping plant on Wednesday.
Mr Guise, 45, was last seen on April 21 at his home, less than 2km from the plant.
Around 20 detectives are now working on the case but won't whether they believe he died at the plant or if his body was dumped there, while there's no word yet about the cause of death.
Police are looking into Facebook posts Mr Guise made before he died, including one from April 10 when he detailed a confrontation over the theft of his property while he was in jail.
"It's funny when you catch someone you been looking for and they shit themselves. And all you want is answers to some questions you have ABOUT all the things you own that was SOLD or STOLEN from me when I (was in) jail," he wrote.
"Funny how a punch in the face and all of sudden they remember things. They tell you the truth.so you lieing GRUB'S I Now know the truth ...u carnt hide now....You know who I mean use two."
On March 29 he said his car, bikes and clothes had been sold and he'd lost other treasured items.
"... pictures of my kids...But you know what really really hurts is a Little jewelry box I made for my mum in high school..IT was the last thing I had of my mums..I've had it for 25 years....I'm shattered, .its making me sick......."
He also detailed his heartbreak and that he missed his son and daughters.
Police divers spent hours extracting Mr Guise's body in a difficult mission that required four truckloads of liquid to be pumped out of the six-metre deep tank.
Detective Inspector Owen Elloy has appealed for any footage from Wynnum's Charlotte Street area.
Mr Guise had collected groceries from a benevolent society in the street around the time he vanished before taking them to his Bride Street home, one block over.
Det Insp Elloy said people who'd lived with the victim had provided "a great deal of assistance" as police waited on post-mortem results and toxicology tests.
He said the pumping station was visited by maintenance crews every 10 to 14 days and staff who made the grisly find were in a state of shock. He also said the pumping station was not overly secure.
Police have spoken to Mr Guise's father after identifying him from tattoos.
Mr Guise moved to a share flat in the Wynnum area in March. Police began looking for him at the weekend, when his sister raised the alarm.
One of his Facebook friends is Olympic diving gold medallist Chantelle Newbery, who changed her profile picture to one featuring Mr Guise before police publicly revealed he was dead.
"Nooo please dont be dead! i DONT BELIEVE YOU ARE DEAD JASON! F**CKIN CALL ME NOW.. TELL EVERYONE THEY ARE WRONG! LOVE YA MATE.. PLEASE BE OK.." she wrote early on Thursday morning.
