On January 30, 2023, Sonia Ramirez, 68, was found shot to death in her home on Ramona Place in Ontario, California, alongside her husband George Ramirez, 66, and their son David Ramirez, 43. The San Bernardino County Sheriff’s Department responded after a report of three deceased individuals; all three had sustained fatal gunshot wounds.

By mid-February 2023 investigators had named 29-year-old Pete Anthony Renteria, a relative of the victims, as the primary suspect; he is the grandson of George and Sonia Ramirez and the nephew of David Ramirez. His whereabouts were unknown and a search was underway. On September 30, 2023, Renteria was arrested in Upland after a separate fatal shooting at Memorial Park. Authorities connected him to the January triple homicide and he was detained on charges in both cases.

The motives for the killings have not been disclosed. If anyone knew the Ramirez family or has information about the January 30 deaths, please share what you know with investigators.