The details of the journey were recounted Monday by a survivor who spoke to The Associated Press and in a federal criminal complaint against the driver, James Matthew Bradley, who could face the death penalty over the 10 lives lost. Bradley, 60, of Clearwater, Florida, appeared in federal court on charges of illegally transporting immigrants for financial gain, resulting in death. In addition to the dead, nearly 20 others rescued from the rig were hospitalized in dire condition, many suffering from extreme dehydration and heatstroke. Mexico's foreign ministry released a statement Monday night that said "according to preliminary information," 25 of the migrants inside the rig were Mexican. Many of the immigrants had hired smugglers who brought them across the U.S.