I agree with you - as a lawyer I never put much stock in the way a loved one acts following these types of situations (unless they are immediately married to someone else and spending the life insurance money like there's no tomorrow). Here, however, what raises my eyebrow is the number of years of relationship between KV, DM, and DT; the geographic nature of their interconnectedness; the photo of DT on FB and its similarity to the POI photo; KV getting back on FB post murder and changing her profile pic (i.e., deleting the picture of her and DM and replacing it with one of her and her friends); DT changing her FB picture; DT then deleting DM as her friend so her comments on his page disappear; then DT posting the fundraising page; then both DT and KV deleting there FB pages as well as the fundraising page - are just so interesting to me. All of that, coupled with KV's comments today about leaving her and her friends alone, lack of any real emotion, the cold nature of the entire PC - all very bizarre. Again, it is 6 weeks post murder - so, I could understand being so numb you have no tears at that moment - but the contrived, deep sniffling was just too much for my "hmmmm" radar. I just pray they solve this murder because no matter the potentially salacious nature of this story - David did not deserve to have his life ended nor his legacy be besmirched no matter the reason he was at the Donovan Hotel.
I can recall another case here (out of Canada) late last year of a missing man and we all pretty much suspected his wife, who shed no tears or what we considered crocodile tears in TV interviews. Turns out, he killed himself and she was innocent. So I try to not put too much weight on that these days. Totality of evidence, sure, but not just that. IMO