>> it got really warm. we had a huge snow melt off. >> the ground around the farmhouse was unusually wet and muddy. >> so you expect there would be muddy footprints from inside the residence from somebody that came in the door. >> absolutely. >> was there anything? >> there was nothing. >> but it was the yellow bag found in the basement, the bag containing shotgun shells that interested carbon the most. >> down stairs in the basement. >> okay. >> we found a bag that had shotgun shells in it. >> okay. >> had you ever seen that before? >> no. >> folly's didn't own a shotgun as far as we know. >> that's correct. >> carbon sent the bag to the lab for analysis. and what technicians found on the bag surprised even this veteran detective. tom's fingerprint was on the bag. >> yes. >> suddenly detective carbon felt he needed to take a closer look atom fully and his