High-profile forensic psychiatrist and 3 others killed in Arizona
Police in Arizona are hunting for a gunman who killed at least three people, including a forensic psychiatrist who worked on high-profile murder cases. Dr. Steven Pitt, who assisted with the infamous JonBenét Ramsey investigation, was shot and killed last Thursday. Police linked the killing with the murders of two paralegals the next day. With a fourth murder in three days, the city is desperate for answers. CBS News correspondent Mireya Villarreal reports.