Concepcion Esparza, 36, was killed on January 6, 1990, at the Silva Ranch in King City, California, where she lived with her family. Rios returned home intoxicated and, after finding Concepcion drinking with her cousin Jose Luis Parra Hernandez, got into a heated argument and retrieved a firearm. Rios shot and killed Concepcion, who was attempting to hide behind the kitchen table. Her 12-year-old son Luis Orlando Esparza, who was in his bedroom watching television, was also struck and killed by the first bullets. Hernandez, who tried to flee, was shot and killed as well.

Rios fled to San Luis Rio Colorado, Sonora, Mexico, and later was returned to the United States, charged with the three murders. At trial he claimed self-defense, but a jury convicted him of three counts of first-degree murder and sentenced him to life without parole with firearm enhancements. His conviction was upheld on appeal. Does anyone have additional information about the Silva Ranch or the victims’ lives in King City?