The coronial inquest into the death of a Perth mother and daughter in their home has heard how the gunman inadvertently recorded himself firing his weapon.
The inquest also heard how gunman Mark Bonbara was "manipulative" to police when they attended his house weeks before the shooting, and they did not check his gun safe.
Police say their policy has changed since the Floreat murders.
A gunman who murdered a mother and daughter in their Perth home inadvertently recorded himself firing the fatal shots on one of the victims' phones, a coronial inquest has heard.
WARNING: This story contains details that may distress some readers.
The shocking detail emerged at the inquest into the murders of Jennifer Petelcyzc and her 18-year-old daughter Gretl, who were killed by Mark Bombara before he took his own life.
Bombara forced his way into their Floreat home while searching for his estranged wife.
Senior Sergeant Nathan Carbone from the WA Police Homicide Squad investigated the deaths.
He told the court Bombara shot Jennifer Petelcyzc, then Gretyl, after which he grabbed Jennifer's phone and "inadvertently" recorded himself firing two more shots.
It is not known if it is an audio or video recording.
Jennifer Petelcyzc and Rowena Bombara were best friends, and Bombara mistakenly believed his estranged wife was staying at the Floreat home.
