A domestic dispute on February 10, 2016, in a northwest Las Vegas neighborhood ended with 32-year-old Aaron Matthews found dead in his driveway from a gunshot wound to the back. The Clark County coroner ruled the death a homicide.

Living at the home was 54-year-old Catherine Brewington, Matthews’ girlfriend of four years. Brewington told police the argument turned physical, claimed Matthews choked her, and said she shot him in the chest with a shotgun in self-defense after she believed he was reaching for a weapon. Investigators found evidence that contradicted that account: Matthews was shot in the back, not the chest. A neighbor reported seeing the couple standing near a truck just before the shot but did not hear yelling or fighting. Two shotguns were recovered from the garage.

Brewington was arrested at the scene and booked on an open murder with a deadly weapon charge. Does anyone have information about the events leading up to that evening or who else might have witnessed the dispute?