who killed don fluitt? detectives believe that if they could i.d. they would have their answer. as they worked to whittle down their list of possible suspects, the fluitt family was mourning dons loss. here again is dennis murphy with the figure in the garage. >> to see don fluitt love the christmas season, would be punished mildly. >> he was obsessed. [laughs] we're talking lights, music. it was everywhere. >> a month after don's murder, his family was still grappling with the fact that he would never see another christmas. no one more distraught than his daughter, siena. >> how is she doing? >> she was strong. she said she was just praying about it. she would cry. >> meanwhile, detective caplan was looking very closely at the apparent bad blood between don fluitt and his brother dennis. >> they kept talking about an estrangement between the two of you. do you know whether referring to? >> oh yeah. when my dad passed, we all came to an agreement on the few assets that he did have. >> there's a cylinder standing? >> so understanding. will gone didn't