Police expect to lay murder charges against two Murray Bridge men after finding another man's body at Jervois on Wednesday.
The two men, aged 49 and 30, have been charged with assisting an offender after allegedly using a red Nissan Navara twin cab ute, with registration S307 AMK, to dump the body.
Police expected to upgrade those charges at Murray Bridge Magistrates' Court this afternoon.
However, members of the public have been asked to come forward with any information which might help the investigation.
That investigation has so far focused on two houses in Murray Bridge: at 12 Tennyson Terrace, where police found a "bloody crime scene", and 52 Mulgundawah Road, where they seized the Nissan ute.
Detective Superintendent Des Bray said police hoped to learn more about any movements at those two addresses between 5pm on Tuesday and 10pm on Wednesday.
"We would appeal to anybody who has seen the Nissan Navara or any other vehicles attending those addresses at any time in the last day to contact Crime Stoppers immediately; and, in respect to the Nissan Navara, anybody who has seen the movements of that vehicle in and around Murray Bridge or Jervois," he said.
Police have identified the victim as a 47-year-old Murray Bridge man who lived at the Tennyson Terrace address.
Friends had reported him missing after he was last seen between midnight on Tuesday and sunrise on Wednesday.
Superintendent Bray said police believed he had been beaten to death.
His body was found behind some mounds of dirt about 250 metres from the corner of Jervois and Generals Corner Roads, in the vicinity of a disused rubbish dump.
Superintendent Bray declined to make the man's identity public, as police were still attempting to contact his closest family member interstate.
But any murder was terrible, he said, no matter who the victim was or what circumstances surrounded the death.
"Invariably they're always completely unnecessary," he said.
"There's no excuse for violence of any kind."
Police have charged two Murray Bridge men in connection with the death of another man whose body was found at Jervois on Wednesday night.
The two men charged, aged 49 and 30, have each been charged with assisting an offender, denied bail, and will face court as early as this afternoon.
Police will allege the pair helped dispose of the body - found in a disused rubbish dump near the corner of Jervois and Generals Corner Roads - using a red Nissan Navara which police seized at a property on Mulgundawah Road.
Investigators are continuing to search for clues at the site where the body was found, the Mulgundawah Road house, and another house on Tennyson Terrace.
Detectives are also interviewing a number of people with knowledge relevant to the investigation.
Police have been able to identify the body, but are still attempting to contact the man's family.
Police have found a man's body on a property at Jervois and are treating the death as suspicious.
They have also located a crime scene at a house on Tennyson Terrace, Murray Bridge which they believe is linked with the man's death.
At least one person with knowledge of the case is cooperating with detectives.
Officers found the body early on Wednesday evening about 250 metres east of the intersection of Jervois Road and Generals Corner Road, according to SA Police.
Detectives from Murray Bridge's criminal investigation branch and Adelaide's major crimes unit quickly cordoned off the scene and began investigating.
Police in Murray Bridge declined to reveal anything more about what had been found at the house.
They expected more information would be forthcoming in the morning.
Police have asked anyone who may be able to assist with the investigation to contact Crime Stoppers.