Guadalupe Gutierrez is pleading for help finding the person who threw a large rock onto a freeway, killing her husband. Christopher Lopez was riding in the passenger seat of a car driven by his wife when the boulder suddenly came through the windshield. It happened on the 134 Freeway in Pasadena. The California Highway Patrol is trying to extract DNA evidence from the stone, which weighs more than 30 pounds. They're hoping that someone will come forward with information about the incident.