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Grandmother Charged with Murder of Grandsons to Use Mental Health Defence

Kathleen Joyce Heggs, 66, remains in custody as police secure court approval for forensic procedures and her legal team prepares a mental health defence.

Tributes are left for two young boys as mourners pay respects to two young boys following their deaths during a vigil in Coonabarabran, New South Wales, Friday, May 9, 2025. Mourners are remembering the lives of two young boys found dead in a small rural community as their maternal grandmother awaits serious charges. (AAP Image/Kait Britton) NO ARCHIVING
police and emergency services at along a dirt road close to where two boys where found dead at a property at Coonabarabran. (Source: ABC News / AAP)
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Overview

  • Kathleen Joyce Heggs faces two counts of domestic violence murder following the deaths of her grandsons, Max and Sam Johnson, aged seven and six, on May 5 in Coonabarabran, NSW.
  • Heggs’ defence will focus on her mental state at the time of the alleged offences, as confirmed by her solicitor during a Dubbo Local Court hearing.
  • Police have obtained court approval to conduct forensic procedures on Heggs as part of their ongoing investigation, which found no weapons were used in the alleged killings.
  • The boys had been in Heggs’ sole care after moving from the NSW Central Coast to Coonabarabran about a year ago due to earlier welfare concerns.
  • The Coonabarabran community continues to mourn the loss, holding vigils, planting trees, and leaving tributes to honor the boys at a local park.