Who were Gary and Josh Dunmore?

Gary and Josh Dunmore were father and son murdered by Stephen Alderton in March 2023.

Why did Stephen Alderton kill the Dunmores?

Alderton committed the murders due to his distorted beliefs about family court proceedings involving his grandson.

What was Stephen Alderton's sentence?

Alderton was sentenced to life imprisonment, with his minimum term later increased to 30 years.

Home / Crime and Justice / Father and Son Murdered Over Family Court Dispute

Father and Son Murdered Over Family Court Dispute

10 Dec, 2025

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Summary

Stephen Alderton murdered Gary and Josh Dunmore in March 2023.
The killings followed a family court hearing regarding Alderton's grandson.
Alderton received a life sentence, increased to 30 years minimum.

Father and Son Murdered Over Family Court Dispute

In March 2023, Stephen Alderton committed the targeted murders of father and son Gary and Josh Dunmore. The dual homicide, which occurred within 30 minutes of each other, stemmed from Alderton's "distorted beliefs" about family court proceedings. Josh Dunmore, the former partner of Alderton's daughter, was shot at his home, followed by Gary Dunmore at his residence.

Alderton was swiftly identified as the suspect and apprehended by armed officers on the M5 motorway. During his arrest, he made remarks indicating his intent to take matters into his own hands. An investigation revealed messages where Alderton had compiled a "shortlist of people I intend to murder," highlighting his premeditated actions.