and looked for eyewitnesses. >> talked to several hundred people, and no one's seen anything. >> turns out, there were no fingerprints inside the car. but during an autopsy the medical examiner did recover dna from jamie's body, dna which likely came from her rapist and killer. >> did you put the dna into a database? >> we put it in codus. >> reporter: any hits? >> none. >> no eyewitnesses, no fingerprints, no dna matches. the investigation wasn't off to a good start. >> and that's when we started contacting people at her place of employment, friends, roommates. >> reporter: did she have any enemies? >> everybody seemed to love her. >> detective elliott began to retrace jamie's steps on the night of the murder. jamie was taking time off from her studies at texas a&m and was working at a pizza parlor. her shift had ended around midnight. >> we contacted everybody on-- that she delivered pizzas to, and nothing out of the ordinary.