>> it was within maybe 200 yards of the crime scene. and he pointed right to the ground and said those are the cigarettes that we were smoking. >> but nine days had passed and analysts were skeptical about getting dna. >> the longer it's been sitting out in the elements, the harder it would be to develop a dna profile. >> but the cyclist did provide an important piece of information. he said the man told him he worked as a telemarketer in nearby walnut creek. a background check revealed there was only one telemarketing firm in walnut creek. >> the manager immediately told me that you're looking for robert frazier. >> he had gotten into some trouble. he had committed some robberies. he had spent time in prison. he had committed some very violent assaults in prison and out on the street.