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Police investigate if grandfather is responsible for mass shooting

Police are investigating whether a grandfather was responsible for the deaths of six of his family members, in one of the worst mass shootings in Australian history.

The investigation into the suspected murder-suicide of seven people, including four children at a rural property in Osmington, near Margaret River, has entered its second day as detectives try to piece together what happened.

<span class="caption cid-7">Police are investigating whether a grandfather </span><span class="caption cid-7">was responsible for the deaths of six of his family members, </span><span class="caption cid-7">before turning the gun on himself </span><span class="caption cid-7">in one of the worst </span><span class="caption cid-7">mass shootings in Australian history.<span> Source: 7 News.</span></span>

Seven News understands Peter Miles, the owner of the property, called police before 5am yesterday, leading officers to the tragedy, before turning the gun on himself.

The two officers who were first on the scene discovered the bodies of the grandfather and his wife.

Grandfather Peter Miles and his wife Cynda were among the seven dead. Source: 7 News
Grandfather Peter Miles and his wife Cynda were among the seven dead. Source: 7 News

The bodies of the man’s daughter, believed to be Katrina Miles and her four children, aged between eight and 13, were found in a shed that had been converted into living quarters on the property.

Police confirmed two firearms were found at the scene.

The property at Osmington, near Margaret River, is expected to remain a crime scene for the next four to five days. Source AAP.
The property at Osmington, near Margaret River, is expected to remain a crime scene for the next four to five days. Source AAP.

The motive behind what has become the worst mass shooting in Australian history since the 1996 Port Arthur massacre, remains unknown.

The property is still a major crime scene as police are expected to remain there for the next four to five days as they attempt to piece together what led to the tragedy.

If you are concerned about the mental health of yourself or a loved one, seek support and information by calling Lifeline on 13 11 14, Mensline 1300 789 978, the Suicide Call Back Service 1300 659 467, or Beyond Blue 1300 22 46 36.