Mexican

All of them were agricultural workers, Half Moon Bay Mayor Deborah Penrose told CNN on Tuesday.One of the victims, 50-year-old Marciano Martinez Jimenez, was an immigrant from the Mexican state of Oaxaca who had lived in the US for 28 years. He worked as a delivery driver and manager at the farm.Four of the victims were discovered at a mushroom farm, while the other three were later found at a nearby trucking business.