keith morrison: but it didn't look good for nick sampson. nied being a marijuana user anymore, but he had had trouble with the drug before. and investigators found that marijuana pipe at the scene. when detectives visited nick's grandfather in murdock, the old man told them that a month ago, nick barlow a 12 gauge shotgun from him, the same gauge weapon that was used in the murders. then investigators executed a search warrant at sampson's home in palmyra. among the items seized from under the bed, that 12 gauge borrowed from his grandfather. and a pair of blue jeans, examined by csi chief david kofoed's team. and we had a pair of pants, and the pair of pants had, looked like blood on him. we had tested that with phenolphthalein, and that was positive. now that was the real smoking gun. i mean, you've got him. keith morrison: and then there was more. remember that car apparently seen by the newspaper carrier parked just a mile from the farmhouse the night of the murders? detectives had found it, they believed. a 1997 ford contour owned by nic