Erin Patterson Allegedly Tried to Kill Husband Before Mushroom Murders

Erin Patterson Allegedly Tried to Kill Husband Before Mushroom Murders
Above: Erin Patterson sitting in a prison transport vehicle in Morwell, Australia, on May 12, 2025. Image credit: Martin Keep/Getty Images

The Facts

  • Erin Patterson, the Australian woman convicted in July of killing her in-laws by poisoning their meal, allegedly also attempted to poison her estranged husband, Simon Patterson, multiple times from 2021 to 2022, resulting in him suffering vomiting, diarrhea and falling into a coma in 2022.
  • Simon declined to attend the fatal July 29, 2023, lunch because he feared his estranged wife would poison him, telling a pre-trial hearing he thought there would be a risk she would poison him if he attended, and previously shared his suspicions with family members.
  • Prosecutors originally charged Patterson with three counts of attempted murder related to the alleged poisoning of her husband, but dropped these charges without explanation on the eve of her trial in April 2024. The charges were based on Simon Patterson's allegations.

Sources Split


The Spin


Narrative A

Patterson's trial omitted a trove of damning evidence — alleged prior poisoning attempts, toxin research, and suspicious visits to trash dumps — that could have made conviction swifter. By shielding the jury from this, prosecutors effectively handled her with soft gloves.

Narrative B

Despite some evidence being excluded to ensure a fair trial, the court followed protocol. Patterson was still found guilty on all counts after 11 weeks of testimony from over 50 witnesses and now faces life in prison, where she belongs.

© 2026 Improve the News Foundation. All rights reserved.Version 7.18.2

© 2026 Improve the News Foundation.

All rights reserved.

Version 7.18.2