A man killed his wife, then himself, near Prosser with a pistol that he had illegally.
Teresa Meraz-Cisneros, 39, was shot several times Thursday in a vineyard north of town by her estranged husband, said Benton County Sheriff Jerry Hatcher.
Heriberto Martinez-Sanchez, 46, of Mabton, then turned the gun on himself, according to the investigation.
The Sunnyside mother of six had a protection order against him.
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The couple’s 21-year-old son found them about 100 yards into the vineyard on the 28000 block of North Hinzerling Road at 6:44 p.m.
Meraz-Cisneros was already dead.
Medics took Martinez-Sanchez to Kadlec Regional Medical Center in Richland. He was unresponsive and in critical condition at the time, said officials.
Hatcher said Martinez-Sanchez died from his wounds early Friday.
Investigators say a Yakima County protection order was served against Martinez-Sanchez in July. The order prevented him from contacting his wife.
It also prevented him from possessing or buying a gun. The order was to last 50 years.
Hatcher said the couple had six children between the ages of 6 and 23.