Funerals for family in WA farm shooting

Angie Raphael
Aaron Cockman is farewelling his four children, killed by their grandfather near Margaret River

Four children and their mother, who were murdered by the family patriarch on their West Australian hobby farm, have been farewelled at a service mourners described as a "wonderful tribute".

Peter Miles shot dead his wife Cynda, their daughter Katrina and her four children - daughter Taye, 13, and sons Rylan, 12, Arye, 10, and Kadyn, eight - at Forever Dreaming Farm in Osmington, near Margaret River, on May 11.

Mr Miles, 61, called police after killing his family and spoke for two minutes before turning the gun on himself.

A funeral service was held at the Crematorium Chapel in Bunbury for Katrina, 35, and her children on Wednesday morning, with about 150 people attending, including dozens of children.

Katrina's estranged partner and the father of her children, Aaron Cockman, hugged other mourners when he arrived.

Many young families brought flowers.

One woman told AAP it had been a "beautiful service" while another described it as a "wonderful tribute".

The President of the Shire of Augusta-Margaret River, Pamela Townshend says the two services on Wednesday will be an important part of the healing process.

"But we know there will be much longer road ahead for many," Ms Townshend said in a statement.

"This continues to be a devastating loss and pain continues to be felt by the wider community."

Another service will be held at the same location in the afternoon for the entire family, including Mr Miles and his wife.

Media have been asked to respect the families' privacy by staying out of the chapel.

Mr Cockman previously told reporters he believed Mr Miles planned the murder-suicide.

He speculated that the grandfather, whose son died years ago, could not bear the thought of losing his other son Neil, who has a serious kidney illness.

Mr Cockman said he didn't believe Mr Miles had financial problems, but he was actively seeking work doing farm maintenance in the area, advertising online and saying he would accept even the smallest jobs.

Friends have told AAP Mr Miles "couldn't look after his family" and felt a "sense of failure".

He was battling mental illness and was reportedly taking antidepressants.

Police spent days scouring the 11 hectare property and the investigation is continuing.

The coroner will eventually hold an inquest.

Locals had planned a large public memorial but say that may not go ahead as several smaller gatherings by the families' friends and community networks have already been held.

Readers seeking support and information about suicide prevention can contact Lifeline on 13 11 14.