Family of the mother and daughter killed in Floreat issues plea for answers

The family of the mother and daughter killed in Floreat has issued its plea for answers after the gunman's daughter accused police of failing to act on warnings. Dennis Harvey is the brother and uncle of Jennifer and Gretl Petel-chez and says more should have been done to protect them. For more, Lucy Murray reports.  See omnystudio.com/listener for privacy information.