Possible Witness to Prison Chief Slaying A woman who was seen exercising in the neighborhood around the time that the head of Colorado's prison system was fatally shot in his home could be a key witness in the murder investigation, authorities said today. Initial reports said the director of the State Department of Corrections had been shot when he answered the door at his Monument, Colo., home, but authorities said this afternoon that they were unable to confirm the sequence of events or a motive for the shooting. "Because of the fact Mr. Clements served in the position he did, we're sensitive to the fact there could be any number of people who have a motive," Lt. Jeff Kramer, a spokesman for the El Paso County Sheriff's office, said at a news conference this afternoon. He also said authorities were keeping an open mind and had not yet ruled out whether Clements was the victim of a random shooting. With few leads to go on, authorities are hoping the woman who was seen speed-walking in the neighborhood Tuesday night will come forward. She was described by witnesses as being between the ages of 35 and 50 and was dressed in a hat, dark wind-breaker and white pants, Kramer said. "The vehicle was observed by this resident parked there, but it was running at the time," Lt. Kramer said. Kramer said authorities believe the woman who was exercising might have seen the vehicle and that authorities are "eager" to speak with her. The vehicle, which had its green dashboard lights on while parked, was described as a two door, dark colored, 1990s model similar to a Lincoln. Officers proceeded today with in-depth searches of the surrounding area, trying to capitalize on daylight hours, Kramer said. Police continue going house to house trying to find out what neighbors heard and saw, and K-9 units were deployed to see whether they could locate anything that might be helpful in the investigation. Colorado Gov. John Hickenlooper struggled to hold back tears today while speaking to reporters this morning and conceded that little is known about a suspect or motive. Hickenlooper was scheduled to sign legislation today that will place new limits on ammunition magazines and expands background checks for firearms. Speaking today, Hickenlooper reflected on Clements' career and time working within Colorado government. He understood the idea of building a team and operating an enterprise. â¦ His unfailing good nature would come through and everything he did. His family released a statement this afternoon mourning the "devoted husband and beloved father." "There are no words at this time to describe our grief and loss," they said. We thank our friends and those praying for us here and across the nation. Your well-wishes and prayers bring us strength. We appreciate your continued respect for our privacy during this terrible loss.