The 33-year old Venezuelan national who was found buried inside a cesspit may have been strangled to death.
Joann Diaz was found on Saturday at a house along Santa Clara Road, Preysal.
Police have one man in custody- a 35-year-old electrician who Diaz reportedly told relatives she was going to visit.
But she never returned home.
Diaz was last seen on Friday, August 28.
A missing person report was filed with the police service one week later on Friday, September 4 and her body was found on Saturday in an advanced state of decomposition.
An autopsy is expected on the body to determine the cause of death.
Investigations are continuing.