On Thanksgiving, a Mexican bricklayer who had crossed the border illegally came across a 9-year-old boy, distraught and looking for help. His mother had driven off a cliff in their van and was trapped inside.
The Mexican man — Jesus Cordova — built a campfire and waited with the boy until help came the next day.
Among the first responders was Jose Estrada, the sheriff for Santa Cruz County in Arizona. Estrada talks with Melissa Block.