UPDATE: Police have confirmed the discovery of human remains, which they believe belong to missing Lesmurdie man Michael Pruiti.
Officers spent yesterday searching thick bushland in Karragullen.
Police today confirmed the discovery of the body, which must still be formally identified.
"As part of the ongoing investigation into the disappearance of Michael Paul Pruiti, Major Crime Squad detectives have been searching an area of land off Dayle Road, Karragullen," a police spokesperson said today.
"As part of that search, human remains were located.
"It is believed they are the remains of Mr Pruiti, however formal identification has not yet occurred."
Forensic officers will remain at the crime scene today.
Mr Pruiti's family said news that his body had been found in Karragullen bush was horrifying but would hopefully bring them some closure.
His family told The Weekend West yesterday that police had visited them regarding the discovery of a body.
“We are horrified and deeply saddened,” they said.
Police said the discovery of Mr Pruiti’s burnt-out car in bushland recently led them to believe he had been murdered.
His car, a 2000 Mitsubishi Magna, was found in bushland in Bartons Mill.
Det-Sen. Sgt James Bradley said finding the car was a major development in the case.
He appealed to those people who knew who killed Mr Pruiti to come forward.
Mr Pruiti's sisters had been left "distraught and distressed" by the recent news, he said.
Anyone with information is asked to contact Crime Stoppers on 1800 333 000.