Police were initially sent to the unfolding Floreat murder-suicide under priority two guidelines, despite desperate Triple Zero calls.
An internal affairs officer says he thinks they should have been sent as a priority one immediately.
An inquest has heard an officer who failed to return Gretl Petelczyc's Triple Zero call had resigned.
Western Australia's acting state coroner has questioned what designates a priority one response by police after a Perth court heard a desperate call to Triple Zero (000) stating someone had been shot in a family violence situation was initially marked a priority two.
It is the latest of several failings to emerge from the coronial inquest this week into the Floreat double-murder suicide.
Mark Bombara, 63, fatally shot his wife's best friend Jennifer Petelczyc, 59, and her 18-year-old daughter Gretl in May, 2024, before turning the gun on himself.
Bombara forced his way into their Floreat home while searching for his estranged wife.
That afternoon, as the gunman threatened her mother, Gretl twice attempted to call Triple Zero and both times waited on the line for more than one minute to be put through to police, but the calls disconnected before she could talk to an officer.
The gunman's daughter, Ariel Bombara, also rang, as she and her mother heard the murders in real time while on the…
