A murder trial in the Queensland Supreme Court is revealing the complexities of a marriage marked by infidelity and suspicion, culminating in the death of Frances Crawford. Her husband, former Air Force pilot Robert Crawford, is accused of killing her and staging the scene to look like an accident involving a ride-on lawnmower.

In the early hours of July 30, 2024, Robert Crawford called emergency services, reporting he was struggling to free his wife from under the mower at their remote property. The operator questioned why she would be mowing at that hour. Paramedics arrived to find Frances Crawford deceased. Signs of rigor mortis were already apparent, suggesting she had been dead for some time.

Prosecutors allege Crawford fabricated text messages between himself and his wife to cover his tracks. He is described as a "love rat" and "master manipulator" who was a "Top Gun" in his professional life but a terrible husband. His defense acknowledges his infidelity but argues it does not make him a killer.

Frances Crawford had previously contracted chlamydia from her husband due to his affairs, a detail that emerged during testimony. She had temporarily separated from him a year prior and imposed strict conditions, including regular polygraph tests, for him to return to the family home.

Her sister testified that Frances described her marriage as "in disrepair," plagued by infidelity and suspicion. Their children also expressed fears for their mother's safety, with their daughter calling their father an "abuser."

Among Frances Crawford's personal notes, which were presented to the court, she detailed pros and cons of staying in the marriage. The cons included potential loss of relationships with her children and the "ongoing reality" of her husband's infidelity. The pros listed financial advantages, the restoration of her family, and her attraction to him.

A police image of the ride-on lawnmower at the centre of the case

The jury has viewed graphic images of Frances Crawford's body, showing severe injuries including a bloodied nose and bruising around her neck. Forensic evidence indicated blood on rocks near her body and also inside the house. A pathologist testified that pinpoint hemorrhages found in her eyelids, often associated with asphyxia or strangulation, were difficult to reconcile with a lawnmower falling on her.

Crawford (pictured) wrote a list of pros and cons for staying with her husband, the Queensland Supreme Court trial has heard

Frances Crawford had also expressed not feeling safe with her husband to police during a previous separation. The trial is ongoing and expected to continue for several weeks.