Their 21-year-old son found his parents in a vineyard north of Prosser at about 6:44 p.m. Deputies responded to the scene and located Teresa Meraz-Cisneros, 39, who was deceased, along with Heriberto Martinez-Sanchez, 46, who was breathing but unresponsive. A handgun was located with them.
The woman had apparent gunshot wounds, and her husband had what appeared to be a self-inflicted gunshot wound. He was transported by ambulance to a local hospital where he succumbed to his injuries early Friday afternoon. An autopsy has been scheduled for today for Teresa, and no autopsy has been scheduled for Heriberto, whose body will be released by the County Coroner to the funeral home.
Detectives with the Benton County Sheriff’s Office continue to investigate the incident, including the possibility of a murder-suicide. There was a protection order served on Heriberto in July of 2017, out of Yakima County, that prevented him from contacting Teresa. The protection order also had a Brady indicator, which prohibited Heriberto from possessing or purchasing a firearm. This order was in effect through July of 2047. Both were living at separate locations, with Teresa living in Sunnyside with family and Heriberto living in Mabton.
The family of Teresa and Heriberto consists of six children, ranging from ages 6 to 23. they have been notified.