Judicial investigators are hoping that a medical examiner can tell them why an expat couple and a farmhand died near Sardinal.
The Fuerza Pública encountered the three bodies in the Finca la Flecha after another employee returned from a vacation in Nicaragua and called police.
The dead couple were believed to be Dutch.
Investigators were puzzled by the case. The individuals had been dead some time making it difficult for agents to see any signs of violence. A vehicle and household goods as well as money remained on the property, which is a forest reserve.