The grieving father of four children who were killed in a family mass murder and suicide case that rocked Australia said Sunday their grandfather was to blame for what he called a planned shooting.
Three firearms have been found at the Osmington farm where seven members of the same family were found dead from gunshot wounds.
Aaron Cockman's former partner Katrina Miles, their 13-year-old daughter Taye and sons Rylan, 12, Arye, 10, and Kadyn, 8 were all found dead at a private property in Osmington on Friday (local time).
"They were just such lovely people", she said.
WA Police Commissioner Chris Dawson confirmed the guns belonged to Mr Miles.
In an ad posted on Gumtree, Peter Miles said he was "seeking work in the vineyard, farm or small farm areas".
Crime-scene and homicide detectives were called to investigate. "There is a seventh person deceased. It's far too premature for me to come to any conclusive statement about that".
"Every member of the South West Home Schooling Network has been touched by the Miles family and we are heartbroken to lose someone that had such an incredible impact on the community".
"They were a very socially aware family, doing their best to create a safe community, and that is why it is so shocking", she said.
"We respectfully ask that the community refrain from speculating on the circumstances surrounding this tragic incident".
"This is a strong community and I know we will support each other and get through this together".More news: Businesses reap benefits of last-minute Mother's Day shoppers
In a press conference this afternoon, Western Australia Police Commissioner Chris Dawson said police were called to the property at 5.15am Friday to find seven bodies.
Seven people, including four children, were involved in what is said to be Australia's worst mass shooting in years.
"Only one victim was found outside of buildings", he told reporters in Margaret River.
Helicopter footage showed one of the bodies was found slumped in an armchair on the verandah.
Katrina Miles and her four children were all killed.
Dawson say police have no information to raise concerns about the wider public safety.
"He's understandably grieving", Dawson said.
The massacre sparked the nation's tough gun controls, prompting the nation to introduce tough gun controls whose supporters include former USA president Barack Obama.
He would only say police were alerted to the shootings by a phone call from a "male person" at the property, who was apparently the killer.
The WA premier was on Sunday questioned about "nasty comments" since made overseas, including from the U.S., that question whether Australia still remains an example of "excellent" gun control after the mass shooting.