>> fred schockner. >> fred schockner, lynn's husband of 25 years. on the surface, it didn't make much sense. after all, fred had been cooperative with detectives from day one. and yes, he had moved out of the family house, but he told them the break was amicable. she was my best friend, he said. and yet, not long after the murder, young charlie sought out detective birdsall and whispered an awful question. >> did my dad have something to do with this? >> charlie remembers what they told him. >> the detective was very quick to assure me that they have no suspicions of that. they don't think that would be something that was happening. and if they had thought that, that they would already have looked into it and not to worry about that. >> is that what detectives really believed? well, no. >> we had to sit there and look at him in the eye and say, we'll catch everybody who was involved. >> but not say, we suspect him? >> exactly. >> they believed they simply