did very thorough investigations of anyone other than mr. smoot. and even his investigation wasn't very thorough. >> jolley told the jury just how little that investigation had uncovered. >> there are no fingerprints there's no gunshot residue test, there's no dna test, there's absolutely no evidence that links mr. smoot to roane county on that evening. >> the defense sought to prove that the evidence the state did have wasn't actually incriminating. like the missing gun that shawn owned. yes, it was the same caliber as the murder weapon. but -- >> there are however many million of people in this country who own guns. and this was a very common weapon. >> the defense also argued that the ballistics report linking shell casings from the crime scene to a bullet at smoot's