Series of rock-throwing incidents in Colorado result in tragic death of 20-year-old driver.

A 20-year-old woman died after someone threw a rock through her windshield in Arvada, Colorado, and investigators believe her death may be part of a series of similar crimes that night. The suspects were involved in three separate incidents of rocks being thrown at vehicles within an hour. Authorities are searching for those responsible and have asked potential victims to come forward. The sheriff's office is working with other law enforcement agencies to gather more information and there may be more victims.