From Round Rock you'd likely go IH35 to 195 on the north side of Georgetown, and then 195 to Killeen. If you're working normal hours you'd be going against the traffic for a good deal of that.
After analysis, unknown prints are compared alongside the known prints. The unknown print is the print found at the crime scene, and the known print is the print of a possible suspect. First, the class characteristics are compared.
What is CSI? Crime scene investigation is a science known as forensics. For every crime there is evidence left behind that can help authorities reconstruct the facts behind the incident. Skilled professionals analyze every bit of the scene until they know all the details of a crime including, sometimes, who did it.