I can't say I'm an expert on the Bain case, but I've been following the media coverage of the retrial. The thing that's struck me about it is how much of the evidence presented has been little more than innuendo. The retrial has seemed like a macabre soap opera at times, with evidence presented about remoured sexual relationships, mental health problems and personal hygiene of Bain family members.
I guess all this sordid stuff is appearing for two reasons. More directly relevant evidence (ballistics stuff, for example) is inconclusive. And because our justice system is adversarial, David's chief defence is to attack his deceased father. All of this, of course, takes place in the public eye - a crucial tenet of our justice system, but one that has rather unpleasant consequences too. Most people don't have a great deal in common with the Bains I'm guessing, but I'd think that any of us would look odd if the small and private details of our lives were taken out of context and made public.
Perhaps this kind of trial is inevitable; but I have to wonder if whatever justice the retrial serves up will be at the expense of the remaining Bain family's dignity.