My partner has chemical sensitivities, especially to heavily perfumed things. We use baking soda and vinegar to clean most things. We already know vinegar is in play at this crime scene, there were photographs taken of a vinegar bottle in the laundry, a witness discussed it early on, can't recall which one.
That said, baking soda is great absorbing odours. I just don't know that it would win in a fight against decomposition, when I generally have to apply handfuls of the stuff several times over a few days to deal with the odour of a pet accident on the carpet. We know Terry Rasmussen had success with perfumed kitty litter, but I think he used about twenty bags of the stuff, and he wasn't transporting his victim.
MOO