A group of young people found the deceased’s body at a plantation around mid-day last Friday and reported the matter to police.
"We cannot say whether it's murder, But I can tell you that the case is far from suicide and we are treating it as a homicide case," said Police spokesperson Sua Le Mamea Tiumalu.
"The deceased had gunshot wounds on his back, multiple gunshot wounds around the spine and injuries to the back of his head," he added.
The man is reported to be originally from Faga, Savaii but was living in Faleatiu as an in-law.