I've not seen the show (keeping everything crossed it'll air in the UK!) but I'm so confused! I am definitely of the opnion that Burke did it but there's a lot I can't make sense of! If he did it and Patsy covered up, why is he asking what did you find, and Patsy asking what did you do? The reports of John being "cordial" don't make sense either. If he was unaware at that point of what had happened (which is what I thought originally) then he doesn't seem to be particularly concerned. Equally if he knew she was dead in the basement, why was he not distraught? I just can't make sense of it. Maybe because it's such a bizarre scenario anyway you look at it! But BDI fits best imo. One thought I had, when John was unaccounted for, is he perhaps "de briefing" Burke? Keep your mouth shut etc? Sorry I'm ranting! I think I'm over-thinking the whole thing!