Guadalupe Gutierrez and her husband, Christopher, were driving on the 134 Freeway in Pasadena, California when tragedy struck them.
Christopher was riding in the passenger seat of the car driven by his wife when a boulder suddenly came through the windshield. Police say a person threw the massive rock onto a freeway, killing Christopher.
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.