Who killed Colo. prison chief and why? Jim Spellman reports on the manhunt

The manhunt for a killer continues in Colorado this morning. Police are searching for leads as to who gunned down the chief of the state's corrections department and a possible motive for the murder.

The family of 58 year-old Tom Clements says they lost a devoted husband and father. He was shot in cold blood Tuesday night as he opened the front door to his home outside of Denver. Authorities have not identified a suspect or a motive but want to talk to a woman who may have been seen walking in the area. Investigators are also looking for the driver of car seen in Clements' neighborhood the night of the murder. Jim Spellman is live in Denver with the latest on the search.

“So far, there are few leads, only a car seen idling nearby around the time of the shooting,” Spellman reports. “The same witness who saw the car idling near the crime scene, minutes later saw it driving…towards Interstate 25. Near the on-ramp to the interstate, there are numerous cameras. Police are checking them to see if they spot the car.”