Olga Edwards, the Sydney woman whose two children were killed by her estranged husband John Edwards, has been found dead in her home on Wednesday.

The 37-year-old solicitor was found by police in West Pennant Hills after they visited to check on her welfare.

In July her two teenage children, Jack and Jennifer, were shot and killed by their father, John Edwards, a 68-year-old financial adviser. He took his own life after the killings.

On Wednesday New South Wales police confirmed that the body of a woman had been found in the home.

“Before 10am today, emergency services were called to a home on Hull Road in West Pennant Hills following a concern-for-welfare report,” a spokeswoman said.

“The body of a 37-year-old woman was located deceased. The death is not being treated as suspicious and a report will be prepared for the coroner.”

Police described the killings in July as a “premeditated and planned” murder, committed with two handguns that Edwards had obtained legally.

Olga Edwards and her children had been separated from John Edwards for two years before he committed the murders, having moved from their former matrimonial home in Normanhurst.

Neighbours of John Edwards said he had become “morose” and “reclusive” and described an incident on a family holiday when he had acted violently towards his children.

• In Australia, the crisis support service Lifeline is on 13 11 14. In the UK Samaritans can be contacted on 116 123. In the US, the National Suicide Prevention Lifeline is 1-800-273-8255. Other international suicide helplines can be found at www.befrienders.org