Erin Heather Roy was 37 when a domestic argument in Tulsa, Oklahoma ended in fatal violence on April 20–21, 2016. On the evening of April 20, she was shot in the head inside a home and taken to a local hospital in critical condition; she died the next day, April 21, 2016.

Tulsa police identified and took a male suspect into custody after the shooting. Authorities said the dispute escalated, but investigators were still working to establish the specific circumstances that led to the fatal encounter. A memorial service was later held for Roy.

If anyone knew Erin, witnessed the incident that night, or has information about what led to the argument, please come forward.