Rebecca Becca Diaz-Martinez was 26 when she was killed at her Oklahoma City home on November 8, 2015. Neighbors reported a domestic dispute that day; the argument reportedly moved onto the roof of the house in the 6100 block of Lillian Lane. Her husband, 29-year-old Humberto Diaz, later called police and admitted to shooting his wife. Officers found Becca deceased with gunshot wounds to her head and face.

Reportedly this was not the first instance of violence between the couple: Humberto had previously threatened Becca with a firearm, and the presence of weapons in the home despite that prior threat was noted during the investigation. The killing was recorded as Oklahoma City’s 78th homicide of the year.

Did anyone in the neighborhood know the couple or see activity at the Lillian Lane address around November 8, 2015?