>> there's enough circumstantial evidence to believe that he was involved if not in the murder, but definitely in the complicity to cover it up. >> reporter: the only thing that dave mcmannis was guilty of, said bross was being a sarcastic guy. >> the majority of the statements that were made were sarcasm at best. so if he's guilty -- >> it's a claim. yeah. and that's kind of an easy out for saying terrible things, isn't it? >> well, it was inappropriate statements, if said at all. david is known to be a jokester and sarcastic. even during the course of the trial, he would say things that were sarcastic. >> reporter: the trials, two of them, dragged on for more than 15 months with delay after delay in a case that had taken more than 15 years to get to this point. sharon and keith's marriage didn't make it that long.