Four people found dead in home in Davidson, in Sydney's north:
-- Detectives are now investigating and a report will be prepared for the coroner.
-- A section of the leafy suburban road has been cordoned off restricting access to the house.
an official whose job is to discover the cause of any sudden, violent or suspicious death by holding an inquest.
a line or ring of police officers, soldiers, etc. guarding sth or stopping people from entering or leaving a place.
to surround an area with a line of police officers, soldiers, or their vehicles, to control access to it.