Anthony Robert Harvey
Anthony Robert Harvey, 25, pleaded guilty to murdering his family and became the first person in Western Australia ordered by a judge never to be eligible for parole.
Harvey killed two-year-old twins, Alice and Beatrix, three-year-old Charlotte and their mother Mara Lee Harvey, 41, at their Bedford home on September 3, 2018.
He killed grandmother, Beverley Ann Quinn, 73, when she visited the next morning.
Harvey used blunt objects and knives to slaughter his unsuspecting family in their home in Bedford, Perth, on 3 Sept 2018 before killing Beverley the following morning when she came to visit her granddaughters.
WA Supreme Court heard Harvey lived with the bodies for five days before he eventually handed himself in to police.
Beverley Quinn was murdered along with her grandchildren (left to right) Charlotte, Beatrix and Alice