KTAR News reporter Jim Cross shares the story of Jim Chilton. He's a fifth-generation rancher who has called Arivaca, an unincorporated community in Pima County with less than 1,000 residents, home since 1987.

His sprawling 50,000-acre ranch, where he lives with his wife Sue, bumps up against the Mexican border for about 5 miles. Chilton estimates at least 35 migrants have died on his ranch over the past few years. Many more have ended up at Chilton’s house, where he’s given out food and water.

This is the first part of a four part series on immigration.