how did heidy truman wind up on her kitchen floor, shot in the head? for sure, police were wondering about her husband. after all, conrad truman was in the house when heidy was shot. and there was no evidence of an intruder. >> i felt like they thought i did something. >> soon after he arrived at the scene, sergeant bill crook did we get to have his suspicions. >> were telling him, comrade back off. and he wouldn't. >> he was what? moving around? keeping paramedics from being there? >> yes, sir. >> there were other scenarios that needed to be explored like accident and suicide. that's when detective tom wallace came in. >> there'd been a number of theories. we obviously are going to exhaust them. that's going to happen. the medical examiner did it make wallace's job any easier. his pollen are polar preliminary finding, heidy's manner of death could not be determined. so, wallace tackled each theory one by one. accident seemed to hard to believe. thanks to conrad, heidy had firearms experience. can you think and a venue we could've been an accident? >> n