…Mexico's state oil company says that searchers have recovered four more bodies from a petrochemical plant wrecked by a huge explosion on the country's Gulf coast, raising the death toll to 32…The company said more than 130 people in all suffered injuries when the explosion rocked the plant in Coatzacoalcos, 370 miles southeast of Mexico City…Pemex has said the explosion happened after a leak but has not determined the source…About 30 families massed at a plant entrance road, where a sharp chemical smell still hung in the air about a mile from where the blast occurred Wednesday afternoon..."What I want is for justice to be done in my son's case, for there to be no impunity," Villalobos said. "I'm going to stay here. Even though I have no money, even though I have nothing to eat, I'm staying put."