The builder got up every morning long before dawn, left home to pick up his construction crew and then headed out to work on yet another house somewhere across the sprawl of Houston.

Fourteen hours later, Lorenzo Salgado Araujo would return to the wife he'd met as a teenager in Mexico and the modest house he'd built for his family on the city's east side.

It's what he'd done for decades, according to Ronaldo Salgado, his oldest son.